64838748 has 96 divisors (see below), whose sum is σ = 180182016. Its totient is φ = 17943552.

The previous prime is 64838729. The next prime is 64838749. The reversal of 64838748 is 84783846.

It is a junction number, because it is equal to n+sod(n) for n = 64838697 and 64838706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64838749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60465 + ... + 61527.

It is an arithmetic number, because the mean of its divisors is an integer number (1876896).

Almost surely, 2^64838748 is an apocalyptic number.

64838748 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64838748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90091008).

64838748 is an abundant number, since it is smaller than the sum of its proper divisors (115343268).

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

64838748 is a wasteful number, since it uses less digits than its factorization.

64838748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123 (or 1121 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 64838748 is about 8052.2511138190. The cubic root of 64838748 is about 401.7398133192.

The spelling of 64838748 in words is "sixty-four million, eight hundred thirty-eight thousand, seven hundred forty-eight".