89145657 has 16 divisors (see below), whose sum is σ = 132960000. Its totient is φ = 59028912.

The previous prime is 89145653. The next prime is 89145673. The reversal of 89145657 is 75654198.

89145657 is a `hidden beast` number, since 89 + 1 + 4 + 565 + 7 = 666.

It is not a de Polignac number, because 89145657 - 2² = 89145653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89145653) 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, 7057 + ... + 15102.

It is an arithmetic number, because the mean of its divisors is an integer number (8310000).

Almost surely, 2^89145657 is an apocalyptic number.

It is an amenable number.

89145657 is a deficient number, since it is larger than the sum of its proper divisors (43814343).

89145657 is a wasteful number, since it uses less digits than its factorization.

89145657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22317 (or 22311 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 89145657 is about 9441.6977816492. The cubic root of 89145657 is about 446.7179428647.

The spelling of 89145657 in words is "eighty-nine million, one hundred forty-five thousand, six hundred fifty-seven".