64087232 has 28 divisors (see below), whose sum is σ = 138735816. Its totient is φ = 29130240.

The previous prime is 64087217. The next prime is 64087237. The reversal of 64087232 is 23278046.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (64087237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44813 + ... + 46220.

Almost surely, 2^64087232 is an apocalyptic number.

It is an amenable number.

64087232 is an abundant number, since it is smaller than the sum of its proper divisors (74648584).

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

64087232 is a wasteful number, since it uses less digits than its factorization.

64087232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91056 (or 91046 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 64087232 is about 8005.4501434960. The cubic root of 64087232 is about 400.1816508283.

The spelling of 64087232 in words is "sixty-four million, eighty-seven thousand, two hundred thirty-two".