64337868 has 48 divisors (see below), whose sum is σ = 190632960. Its totient is φ = 18382032.

The previous prime is 64337851. The next prime is 64337873. The reversal of 64337868 is 86873346.

It is a super-2 number, since 2×64337868² = 8278722517570848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41796 + ... + 43307.

It is an arithmetic number, because the mean of its divisors is an integer number (3971520).

Almost surely, 2^64337868 is an apocalyptic number.

It is an amenable number.

64337868 is an abundant number, since it is smaller than the sum of its proper divisors (126295092).

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

64337868 is a wasteful number, since it uses less digits than its factorization.

64337868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85123 (or 85115 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 64337868 is about 8021.0889535025. The cubic root of 64337868 is about 400.7026566281.

The spelling of 64337868 in words is "sixty-four million, three hundred thirty-seven thousand, eight hundred sixty-eight".