64876872 has 32 divisors (see below), whose sum is σ = 164944800. Its totient is φ = 21258624.

The previous prime is 64876829. The next prime is 64876891. The reversal of 64876872 is 27867846.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21493 + ... + 24324.

It is an arithmetic number, because the mean of its divisors is an integer number (5154525).

Almost surely, 2^64876872 is an apocalyptic number.

It is an amenable number.

64876872 is an abundant number, since it is smaller than the sum of its proper divisors (100067928).

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

64876872 is a wasteful number, since it uses less digits than its factorization.

64876872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45885 (or 45881 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

The square root of 64876872 is about 8054.6180542593. The cubic root of 64876872 is about 401.8185364504.

The spelling of 64876872 in words is "sixty-four million, eight hundred seventy-six thousand, eight hundred seventy-two".