64260872 has 32 divisors (see below), whose sum is σ = 130296600. Its totient is φ = 29535744.

The previous prime is 64260863. The next prime is 64260929. The reversal of 64260872 is 27806246.

It can be written as a sum of positive squares in 4 ways, for example, as 26977636 + 37283236 = 5194^2 + 6106^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26828 + ... + 29124.

Almost surely, 2^64260872 is an apocalyptic number.

It is an amenable number.

64260872 is an abundant number, since it is smaller than the sum of its proper divisors (66035728).

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

64260872 is a wasteful number, since it uses less digits than its factorization.

64260872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585 (or 2581 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 64260872 is about 8016.2879189810. The cubic root of 64260872 is about 400.5427465657.

The spelling of 64260872 in words is "sixty-four million, two hundred sixty thousand, eight hundred seventy-two".