64874028 has 24 divisors (see below), whose sum is σ = 151506432. Its totient is φ = 21605584.

The previous prime is 64874027. The next prime is 64874039. The reversal of 64874028 is 82047846.

It is not an unprimeable number, because it can be changed into a prime (64874027) 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, 20701 + ... + 23627.

It is an arithmetic number, because the mean of its divisors is an integer number (6312768).

Almost surely, 2^64874028 is an apocalyptic number.

It is an amenable number.

64874028 is an abundant number, since it is smaller than the sum of its proper divisors (86632404).

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

64874028 is a wasteful number, since it uses less digits than its factorization.

64874028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4781 (or 4779 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 64874028 is about 8054.4415076404. The cubic root of 64874028 is about 401.8126648735.

The spelling of 64874028 in words is "sixty-four million, eight hundred seventy-four thousand, twenty-eight".