3898923633 has 128 divisors (see below), whose sum is σ = 7112448000. Its totient is φ = 2080235520.

The previous prime is 3898923631. The next prime is 3898923643. The reversal of 3898923633 is 3363298983.

3898923633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3898923633 - 2¹ = 3898923631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3898923633.

It is not an unprimeable number, because it can be changed into a prime (3898923631) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9305098 + ... + 9305516.

It is an arithmetic number, because the mean of its divisors is an integer number (55566000).

Almost surely, 2^3898923633 is an apocalyptic number.

3898923633 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3898923633 is a deficient number, since it is larger than the sum of its proper divisors (3213524367).

3898923633 is a wasteful number, since it uses less digits than its factorization.

3898923633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 566 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 54.

The square root of 3898923633 is about 62441.3615562633. The cubic root of 3898923633 is about 1573.9160941427.

The spelling of 3898923633 in words is "three billion, eight hundred ninety-eight million, nine hundred twenty-three thousand, six hundred thirty-three".