89191357 has 4 divisors (see below), whose sum is σ = 89226880. Its totient is φ = 89155836.

The previous prime is 89191343. The next prime is 89191363. The reversal of 89191357 is 75319198.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89191357 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 (89191397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13683 + ... + 19120.

It is an arithmetic number, because the mean of its divisors is an integer number (22306720).

Almost surely, 2^89191357 is an apocalyptic number.

It is an amenable number.

89191357 is a deficient number, since it is larger than the sum of its proper divisors (35523).

89191357 is a wasteful number, since it uses less digits than its factorization.

89191357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35522.

The product of its digits is 68040, while the sum is 43.

The square root of 89191357 is about 9444.1175871545. The cubic root of 89191357 is about 446.7942656048.

The spelling of 89191357 in words is "eighty-nine million, one hundred ninety-one thousand, three hundred fifty-seven".