89976557 has 16 divisors (see below), whose sum is σ = 100172160. Its totient is φ = 80136000.

The previous prime is 89976553. The next prime is 89976587. The reversal of 89976557 is 75567998.

It is a cyclic number.

It is not a de Polignac number, because 89976557 - 2² = 89976553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89976553) 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, 120728 + ... + 121470.

It is an arithmetic number, because the mean of its divisors is an integer number (6260760).

Almost surely, 2^89976557 is an apocalyptic number.

It is an amenable number.

89976557 is a deficient number, since it is larger than the sum of its proper divisors (10195603).

89976557 is a wasteful number, since it uses less digits than its factorization.

89976557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964.

The product of its digits is 4762800, while the sum is 56.

The square root of 89976557 is about 9485.5973454496. The cubic root of 89976557 is about 448.1015610652.

The spelling of 89976557 in words is "eighty-nine million, nine hundred seventy-six thousand, five hundred fifty-seven".