64585672 has 16 divisors (see below), whose sum is σ = 121489740. Its totient is φ = 32188416.

The previous prime is 64585667. The next prime is 64585711. The reversal of 64585672 is 27658546.

It can be written as a sum of positive squares in 2 ways, for example, as 43480836 + 21104836 = 6594^2 + 4594^2 .

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 3 ways as a sum of consecutive naturals, for example, 10393 + ... + 15400.

Almost surely, 2^64585672 is an apocalyptic number.

It is an amenable number.

64585672 is a deficient number, since it is larger than the sum of its proper divisors (56904068).

64585672 is a wasteful number, since it uses less digits than its factorization.

64585672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26112 (or 26108 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The square root of 64585672 is about 8036.5211379054. The cubic root of 64585672 is about 401.2164468923.

The spelling of 64585672 in words is "sixty-four million, five hundred eighty-five thousand, six hundred seventy-two".