89973157 has 8 divisors (see below), whose sum is σ = 93329984. Its totient is φ = 86673888.

The previous prime is 89973137. The next prime is 89973187. The reversal of 89973157 is 75137998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89973157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89973157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89973137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11193 + ... + 17470.

It is an arithmetic number, because the mean of its divisors is an integer number (11666248).

Almost surely, 2^89973157 is an apocalyptic number.

It is an amenable number.

89973157 is a deficient number, since it is larger than the sum of its proper divisors (3356827).

89973157 is a wasteful number, since it uses less digits than its factorization.

89973157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28779.

The product of its digits is 476280, while the sum is 49.

The square root of 89973157 is about 9485.4181246796. The cubic root of 89973157 is about 448.0959167635.

The spelling of 89973157 in words is "eighty-nine million, nine hundred seventy-three thousand, one hundred fifty-seven".