64814864 has 20 divisors (see below), whose sum is σ = 125747904. Its totient is φ = 32363808.

The previous prime is 64814819. The next prime is 64814899. The reversal of 64814864 is 46841846.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11909 + ... + 16475.

Almost surely, 2^64814864 is an apocalyptic number.

It is an amenable number.

64814864 is a deficient number, since it is larger than the sum of its proper divisors (60933040).

64814864 is a wasteful number, since it uses less digits than its factorization.

64814864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5462 (or 5456 counting only the distinct ones).

The product of its digits is 147456, while the sum is 41.

The square root of 64814864 is about 8050.7679136838. The cubic root of 64814864 is about 401.6904789710.

The spelling of 64814864 in words is "sixty-four million, eight hundred fourteen thousand, eight hundred sixty-four".