89018957 has 4 divisors (see below), whose sum is σ = 90019260. Its totient is φ = 88018656.

The previous prime is 89018939. The next prime is 89018977. The reversal of 89018957 is 75981098.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22905796 + 66113161 = 4786^2 + 8131^2 .

It is a cyclic number.

It is not a de Polignac number, because 89018957 - 2²² = 84824653 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 (89018977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500018 + ... + 500195.

It is an arithmetic number, because the mean of its divisors is an integer number (22504815).

Almost surely, 2^89018957 is an apocalyptic number.

It is an amenable number.

89018957 is a deficient number, since it is larger than the sum of its proper divisors (1000303).

89018957 is a wasteful number, since it uses less digits than its factorization.

89018957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000302.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 89018957 is about 9434.9857975516. The cubic root of 89018957 is about 446.5062069982.

The spelling of 89018957 in words is "eighty-nine million, eighteen thousand, nine hundred fifty-seven".