323668564 has 6 divisors (see below), whose sum is σ = 566419994. Its totient is φ = 161834280.

The previous prime is 323668549. The next prime is 323668567. The reversal of 323668564 is 465866323.

It can be written as a sum of positive squares in only one way, i.e., 226803600 + 96864964 = 15060^2 + 9842^2 .

It is a super-2 number, since 2×323668564² = 209522678643644192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 323668564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323668567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40458567 + ... + 40458574.

Almost surely, 2^323668564 is an apocalyptic number.

It is an amenable number.

323668564 is a deficient number, since it is larger than the sum of its proper divisors (242751430).

323668564 is a wasteful number, since it uses less digits than its factorization.

323668564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80917145 (or 80917143 counting only the distinct ones).

The product of its digits is 622080, while the sum is 43.

The square root of 323668564 is about 17990.7910887765. The cubic root of 323668564 is about 686.5942684010.

The spelling of 323668564 in words is "three hundred twenty-three million, six hundred sixty-eight thousand, five hundred sixty-four".