89725564 has 6 divisors (see below), whose sum is σ = 157019744. Its totient is φ = 44862780.

The previous prime is 89725561. The next prime is 89725567. The reversal of 89725564 is 46552798.

It is an interprime number because it is at equal distance from previous prime (89725561) and next prime (89725567).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89725561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11215692 + ... + 11215699.

Almost surely, 2^89725564 is an apocalyptic number.

It is an amenable number.

89725564 is a deficient number, since it is larger than the sum of its proper divisors (67294180).

89725564 is a wasteful number, since it uses less digits than its factorization.

89725564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22431395 (or 22431393 counting only the distinct ones).

The product of its digits is 604800, while the sum is 46.

The square root of 89725564 is about 9472.3578901982. The cubic root of 89725564 is about 447.6845076261.

The spelling of 89725564 in words is "eighty-nine million, seven hundred twenty-five thousand, five hundred sixty-four".