89137257 has 16 divisors (see below), whose sum is σ = 130848960. Its totient is φ = 53524800.

The previous prime is 89137253. The next prime is 89137289. The reversal of 89137257 is 75273198.

It is not a de Polignac number, because 89137257 - 2² = 89137253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89137253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8794 + ... + 15987.

It is an arithmetic number, because the mean of its divisors is an integer number (8178060).

Almost surely, 2^89137257 is an apocalyptic number.

It is an amenable number.

89137257 is a deficient number, since it is larger than the sum of its proper divisors (41711703).

89137257 is a wasteful number, since it uses less digits than its factorization.

89137257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24904.

The product of its digits is 105840, while the sum is 42.

The square root of 89137257 is about 9441.2529359190. The cubic root of 89137257 is about 446.7039113395.

The spelling of 89137257 in words is "eighty-nine million, one hundred thirty-seven thousand, two hundred fifty-seven".