89564475 has 96 divisors (see below), whose sum is σ = 198987264. Its totient is φ = 34329600.

The previous prime is 89564471. The next prime is 89564479. The reversal of 89564475 is 57446598.

It is an interprime number because it is at equal distance from previous prime (89564471) and next prime (89564479).

It is not a de Polignac number, because 89564475 - 2² = 89564471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89564471) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 74479 + ... + 75671.

It is an arithmetic number, because the mean of its divisors is an integer number (2072784).

Almost surely, 2^89564475 is an apocalyptic number.

89564475 is an abundant number, since it is smaller than the sum of its proper divisors (109422789).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89564475 is a wasteful number, since it uses less digits than its factorization.

89564475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237 (or 1232 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The square root of 89564475 is about 9463.8509603649. The cubic root of 89564475 is about 447.4164299901.

It can be divided in two parts, 8956 and 4475, that added together give a palindrome (13431).

The spelling of 89564475 in words is "eighty-nine million, five hundred sixty-four thousand, four hundred seventy-five".