22717664 has 12 divisors (see below), whose sum is σ = 44725464. Its totient is φ = 11358816.

The previous prime is 22717663. The next prime is 22717687. The reversal of 22717664 is 46671722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22717663) by changing a digit.

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, 354932 + ... + 354995.

It is an arithmetic number, because the mean of its divisors is an integer number (3727122).

Almost surely, 2^22717664 is an apocalyptic number.

It is an amenable number.

22717664 is a deficient number, since it is larger than the sum of its proper divisors (22007800).

22717664 is an equidigital number, since it uses as much as digits as its factorization.

22717664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709937 (or 709929 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 22717664 is about 4766.3050678697. The cubic root of 22717664 is about 283.2182428373.

The spelling of 22717664 in words is "twenty-two million, seven hundred seventeen thousand, six hundred sixty-four".