3898503648 has 288 divisors, whose sum is σ = 13018813920. Its totient is φ = 1128038400.

The previous prime is 3898503643. The next prime is 3898503659. The reversal of 3898503648 is 8463058983.

It is a happy number.

3898503648 is a `hidden beast` number, since 3 + 8 + 98 + 503 + 6 + 48 = 666.

3898503648 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 3898503594 and 3898503603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898503641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3245448 + ... + 3246648.

It is an arithmetic number, because the mean of its divisors is an integer number (45204215).

Almost surely, 2^3898503648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3898503648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6509406960).

3898503648 is an abundant number, since it is smaller than the sum of its proper divisors (9120310272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3898503648 is a wasteful number, since it uses less digits than its factorization.

3898503648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267 (or 1236 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The square root of 3898503648 is about 62437.9984304430. The cubic root of 3898503648 is about 1573.8595789820.

The spelling of 3898503648 in words is "three billion, eight hundred ninety-eight million, five hundred three thousand, six hundred forty-eight".