64936704 has 144 divisors (see below), whose sum is σ = 202503168. Its totient is φ = 18087936.

The previous prime is 64936691. The next prime is 64936709. The reversal of 64936704 is 40763946.

64936704 = 270² + 271² + ... + 598².

It is not an unprimeable number, because it can be changed into a prime (64936709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252544 + ... + 252800.

It is an arithmetic number, because the mean of its divisors is an integer number (1406272).

Almost surely, 2^64936704 is an apocalyptic number.

64936704 is a gapful number since it is divisible by the number (64) 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 64936704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101251584).

64936704 is an abundant number, since it is smaller than the sum of its proper divisors (137566464).

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

64936704 is a wasteful number, since it uses less digits than its factorization.

64936704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 64936704 is about 8058.3313409167. The cubic root of 64936704 is about 401.9420227767.

The spelling of 64936704 in words is "sixty-four million, nine hundred thirty-six thousand, seven hundred four".