89091075 has 24 divisors (see below), whose sum is σ = 153704448. Its totient is φ = 45448480.

The previous prime is 89091071. The next prime is 89091127. The reversal of 89091075 is 57019098.

It is a happy number.

It is not a de Polignac number, because 89091075 - 2² = 89091071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89091071) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 24099 + ... + 27548.

It is an arithmetic number, because the mean of its divisors is an integer number (6404352).

Almost surely, 2^89091075 is an apocalyptic number.

89091075 is a deficient number, since it is larger than the sum of its proper divisors (64613373).

89091075 is a wasteful number, since it uses less digits than its factorization.

89091075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51683 (or 51678 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 89091075 is about 9438.8068631581. The cubic root of 89091075 is about 446.6267522686.

The spelling of 89091075 in words is "eighty-nine million, ninety-one thousand, seventy-five".