89520975 has 36 divisors (see below), whose sum is σ = 163389096. Its totient is φ = 46837440.

The previous prime is 89520961. The next prime is 89520979. The reversal of 89520975 is 57902598.

It is a happy number.

It is not a de Polignac number, because 89520975 - 2¹¹ = 89518927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 89520975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89520979) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8172 + ... + 15678.

It is an arithmetic number, because the mean of its divisors is an integer number (4538586).

Almost surely, 2^89520975 is an apocalyptic number.

89520975 is a deficient number, since it is larger than the sum of its proper divisors (73868121).

89520975 is a wasteful number, since it uses less digits than its factorization.

89520975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7576 (or 7568 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 89520975 is about 9461.5524624662. The cubic root of 89520975 is about 447.3439839805.

The spelling of 89520975 in words is "eighty-nine million, five hundred twenty thousand, nine hundred seventy-five".