89115957 has 30 divisors (see below), whose sum is σ = 154865238. Its totient is φ = 50921136.

The previous prime is 89115953. The next prime is 89115959. The reversal of 89115957 is 75951198.

It can be written as a sum of positive squares in only one way, i.e., 59074596 + 30041361 = 7686^2 + 5481^2 .

It is not a de Polignac number, because 89115957 - 2² = 89115953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89115953) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 7258 + ... + 15195.

Almost surely, 2^89115957 is an apocalyptic number.

It is an amenable number.

89115957 is a deficient number, since it is larger than the sum of its proper divisors (65749281).

89115957 is a wasteful number, since it uses less digits than its factorization.

89115957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22479 (or 22463 counting only the distinct ones).

The product of its digits is 113400, while the sum is 45.

The square root of 89115957 is about 9440.1248402762. The cubic root of 89115957 is about 446.6683274486.

The spelling of 89115957 in words is "eighty-nine million, one hundred fifteen thousand, nine hundred fifty-seven".