23667664 has 10 divisors (see below), whose sum is σ = 45856130. Its totient is φ = 11833824.

The previous prime is 23667653. The next prime is 23667671. The reversal of 23667664 is 46676632.

It can be written as a sum of positive squares in only one way, i.e., 23425600 + 242064 = 4840^2 + 492^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 739599 + ... + 739630.

It is an arithmetic number, because the mean of its divisors is an integer number (4585613).

Almost surely, 2^23667664 is an apocalyptic number.

It is an amenable number.

23667664 is a deficient number, since it is larger than the sum of its proper divisors (22188466).

23667664 is a wasteful number, since it uses less digits than its factorization.

23667664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479237 (or 1479231 counting only the distinct ones).

The product of its digits is 217728, while the sum is 40.

The square root of 23667664 is about 4864.9423429266. The cubic root of 23667664 is about 287.1123000977.

The spelling of 23667664 in words is "twenty-three million, six hundred sixty-seven thousand, six hundred sixty-four".