89565664 has 12 divisors (see below), whose sum is σ = 176332464. Its totient is φ = 44782816.

The previous prime is 89565653. The next prime is 89565701. The reversal of 89565664 is 46656598.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 1399432 + ... + 1399495.

It is an arithmetic number, because the mean of its divisors is an integer number (14694372).

Almost surely, 2^89565664 is an apocalyptic number.

It is an amenable number.

89565664 is a deficient number, since it is larger than the sum of its proper divisors (86766800).

89565664 is a wasteful number, since it uses less digits than its factorization.

89565664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2798937 (or 2798929 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 49.

The square root of 89565664 is about 9463.9137781364. The cubic root of 89565664 is about 447.4184098517.

The spelling of 89565664 in words is "eighty-nine million, five hundred sixty-five thousand, six hundred sixty-four".