89938557 has 6 divisors (see below), whose sum is σ = 129911262. Its totient is φ = 59959032.

The previous prime is 89938553. The next prime is 89938561. The reversal of 89938557 is 75583998.

89938557 is a `hidden beast` number, since 89 + 9 + 3 + 8 + 557 = 666.

It is an interprime number because it is at equal distance from previous prime (89938553) and next prime (89938561).

It can be written as a sum of positive squares in only one way, i.e., 83557881 + 6380676 = 9141^2 + 2526^2 .

It is not a de Polignac number, because 89938557 - 2² = 89938553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89938553) 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, 4996578 + ... + 4996595.

It is an arithmetic number, because the mean of its divisors is an integer number (21651877).

Almost surely, 2^89938557 is an apocalyptic number.

It is an amenable number.

89938557 is a deficient number, since it is larger than the sum of its proper divisors (39972705).

89938557 is a wasteful number, since it uses less digits than its factorization.

89938557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9993179 (or 9993176 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The square root of 89938557 is about 9483.5940971764. The cubic root of 89938557 is about 448.0384696052.

The spelling of 89938557 in words is "eighty-nine million, nine hundred thirty-eight thousand, five hundred fifty-seven".