89644975 has 24 divisors (see below), whose sum is σ = 128373728. Its totient is φ = 60825600.

The previous prime is 89644957. The next prime is 89644993. The reversal of 89644975 is 57944698.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (89644957) and next prime (89644993).

It is not a de Polignac number, because 89644975 - 2⁵ = 89644943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14335 + ... + 19615.

Almost surely, 2^89644975 is an apocalyptic number.

89644975 is a deficient number, since it is larger than the sum of its proper divisors (38728753).

89644975 is a wasteful number, since it uses less digits than its factorization.

89644975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5395 (or 5390 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 89644975 is about 9468.1030307026. The cubic root of 89644975 is about 447.5504348969.

The spelling of 89644975 in words is "eighty-nine million, six hundred forty-four thousand, nine hundred seventy-five".