64287288 has 48 divisors (see below), whose sum is σ = 187507320. Its totient is φ = 19780416.

The previous prime is 64287271. The next prime is 64287299. The reversal of 64287288 is 88278246.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33406 + ... + 35277.

Almost surely, 2^64287288 is an apocalyptic number.

It is an amenable number.

64287288 is an abundant number, since it is smaller than the sum of its proper divisors (123220032).

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

64287288 is a wasteful number, since it uses less digits than its factorization.

64287288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68708 (or 68701 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 64287288 is about 8017.9353951002. The cubic root of 64287288 is about 400.5976233379.

The spelling of 64287288 in words is "sixty-four million, two hundred eighty-seven thousand, two hundred eighty-eight".