64872260 has 12 divisors (see below), whose sum is σ = 136231788. Its totient is φ = 25948896.

The previous prime is 64872239. The next prime is 64872263. The reversal of 64872260 is 6227846.

It can be written as a sum of positive squares in 2 ways, for example, as 8111104 + 56761156 = 2848^2 + 7534^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64872260.

It is not an unprimeable number, because it can be changed into a prime (64872263) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1621787 + ... + 1621826.

It is an arithmetic number, because the mean of its divisors is an integer number (11352649).

Almost surely, 2^64872260 is an apocalyptic number.

It is an amenable number.

64872260 is an abundant number, since it is smaller than the sum of its proper divisors (71359528).

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

64872260 is a wasteful number, since it uses less digits than its factorization.

64872260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3243622 (or 3243620 counting only the distinct ones).

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

The square root of 64872260 is about 8054.3317537832. The cubic root of 64872260 is about 401.8090146647.

The spelling of 64872260 in words is "sixty-four million, eight hundred seventy-two thousand, two hundred sixty".