64700832 has 48 divisors (see below), whose sum is σ = 194104512. Its totient is φ = 18485760.

The previous prime is 64700821. The next prime is 64700837. The reversal of 64700832 is 23800746.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×64700832² = 8372395322984448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64700832.

It is not an unprimeable number, because it can be changed into a prime (64700837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47469 + ... + 48812.

It is an arithmetic number, because the mean of its divisors is an integer number (4043844).

Almost surely, 2^64700832 is an apocalyptic number.

It is an amenable number.

64700832 is an abundant number, since it is smaller than the sum of its proper divisors (129403680).

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

64700832 is a wasteful number, since it uses less digits than its factorization.

64700832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96301 (or 96293 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 64700832 is about 8043.6827386465. The cubic root of 64700832 is about 401.4547693677.

The spelling of 64700832 in words is "sixty-four million, seven hundred thousand, eight hundred thirty-two".