89157723 has 4 divisors (see below), whose sum is σ = 118876968. Its totient is φ = 59438480.

The previous prime is 89157721. The next prime is 89157743. The reversal of 89157723 is 32775198.

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

It is a cyclic number.

It is not a de Polignac number, because 89157723 - 2¹ = 89157721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89157721) 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, 14859618 + ... + 14859623.

It is an arithmetic number, because the mean of its divisors is an integer number (29719242).

Almost surely, 2^89157723 is an apocalyptic number.

89157723 is a deficient number, since it is larger than the sum of its proper divisors (29719245).

89157723 is a wasteful number, since it uses less digits than its factorization.

89157723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29719244.

The product of its digits is 105840, while the sum is 42.

The square root of 89157723 is about 9442.3367340929. The cubic root of 89157723 is about 446.7380966060.

The spelling of 89157723 in words is "eighty-nine million, one hundred fifty-seven thousand, seven hundred twenty-three".