8791157 has 4 divisors (see below), whose sum is σ = 8837376. Its totient is φ = 8744940.

The previous prime is 8791121. The next prime is 8791169. The reversal of 8791157 is 7511978.

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 not a de Polignac number, because 8791157 - 2⁶ = 8791093 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 8791157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8791187) 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, 22823 + ... + 23204.

It is an arithmetic number, because the mean of its divisors is an integer number (2209344).

Almost surely, 2^8791157 is an apocalyptic number.

It is an amenable number.

8791157 is a deficient number, since it is larger than the sum of its proper divisors (46219).

8791157 is a wasteful number, since it uses less digits than its factorization.

8791157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46218.

The product of its digits is 17640, while the sum is 38.

The square root of 8791157 is about 2964.9885328615. The cubic root of 8791157 is about 206.3868449666.

The spelling of 8791157 in words is "eight million, seven hundred ninety-one thousand, one hundred fifty-seven".