89605157 has 16 divisors (see below), whose sum is σ = 96831600. Its totient is φ = 82797120.

The previous prime is 89605151. The next prime is 89605169. The reversal of 89605157 is 75150698.

It is a Cunningham number, because it is equal to 9466²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 1 + 89605156 = 1^2 + 9466^2 .

It is not a de Polignac number, because 89605157 - 2⁴ = 89605141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89605151) 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, 1468907 + ... + 1468967.

It is an arithmetic number, because the mean of its divisors is an integer number (6051975).

Almost surely, 2^89605157 is an apocalyptic number.

It is an amenable number.

89605157 is a deficient number, since it is larger than the sum of its proper divisors (7226443).

89605157 is an frugal number, since it uses more digits than its factorization.

89605157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 89605157 is about 9466.0000528206. Note that the first 4 decimals coincide. The cubic root of 89605157 is about 447.4841616067.

The spelling of 89605157 in words is "eighty-nine million, six hundred five thousand, one hundred fifty-seven".