64512704 has 28 divisors (see below), whose sum is σ = 132435600. Its totient is φ = 31143168.

The previous prime is 64512703. The next prime is 64512709. The reversal of 64512704 is 40721546.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (64512703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15524 + ... + 19235.

Almost surely, 2^64512704 is an apocalyptic number.

64512704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

64512704 is an abundant number, since it is smaller than the sum of its proper divisors (67922896).

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

64512704 is a wasteful number, since it uses less digits than its factorization.

64512704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34800 (or 34790 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 64512704 is about 8031.9800796566. The cubic root of 64512704 is about 401.0652936881.

The spelling of 64512704 in words is "sixty-four million, five hundred twelve thousand, seven hundred four".