89566157 has 6 divisors (see below), whose sum is σ = 89951274. Its totient is φ = 89182400.

The previous prime is 89566153. The next prime is 89566177. The reversal of 89566157 is 75166598.

It can be written as a sum of positive squares in 3 ways, for example, as 49294441 + 40271716 = 7021^2 + 6346^2 .

It is not a de Polignac number, because 89566157 - 2² = 89566153 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89566153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 160523 + ... + 161079.

It is an arithmetic number, because the mean of its divisors is an integer number (14991879).

Almost surely, 2^89566157 is an apocalyptic number.

It is an amenable number.

89566157 is a deficient number, since it is larger than the sum of its proper divisors (385117).

89566157 is an frugal number, since it uses more digits than its factorization.

89566157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359 (or 958 counting only the distinct ones).

The product of its digits is 453600, while the sum is 47.

The square root of 89566157 is about 9463.9398244072. The cubic root of 89566157 is about 447.4192307648.

The spelling of 89566157 in words is "eighty-nine million, five hundred sixty-six thousand, one hundred fifty-seven".