8557163 has 4 divisors (see below), whose sum is σ = 9007560. Its totient is φ = 8106768.

The previous prime is 8557139. The next prime is 8557169. The reversal of 8557163 is 3617558.

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

It is not a de Polignac number, because 8557163 - 2⁸ = 8556907 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8557169) 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, 225170 + ... + 225207.

It is an arithmetic number, because the mean of its divisors is an integer number (2251890).

Almost surely, 2^8557163 is an apocalyptic number.

8557163 is a deficient number, since it is larger than the sum of its proper divisors (450397).

8557163 is a wasteful number, since it uses less digits than its factorization.

8557163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450396.

The product of its digits is 25200, while the sum is 35.

The square root of 8557163 is about 2925.2628941687. The cubic root of 8557163 is about 204.5392228734.

The spelling of 8557163 in words is "eight million, five hundred fifty-seven thousand, one hundred sixty-three".