572665864 has 8 divisors (see below), whose sum is σ = 1073748510. Its totient is φ = 286332928.

The previous prime is 572665853. The next prime is 572665963. The reversal of 572665864 is 468566275.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 336428964 + 236236900 = 18342^2 + 15370^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35791609 + ... + 35791624.

Almost surely, 2^572665864 is an apocalyptic number.

It is an amenable number.

572665864 is a deficient number, since it is larger than the sum of its proper divisors (501082646).

572665864 is a wasteful number, since it uses less digits than its factorization.

572665864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71583239 (or 71583235 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 49.

The square root of 572665864 is about 23930.4380235716. The cubic root of 572665864 is about 830.4250322247.

The spelling of 572665864 in words is "five hundred seventy-two million, six hundred sixty-five thousand, eight hundred sixty-four".