8557881 has 8 divisors (see below), whose sum is σ = 11548320. Its totient is φ = 5636352.

The previous prime is 8557867. The next prime is 8557897. The reversal of 8557881 is 1887558.

8557881 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8557881 - 2¹⁵ = 8525113 is a prime.

It is a super-2 number, since 2×8557881² = 146474654420322, which contains 22 as substring.

8557881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8557181) 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, 16936 + ... + 17433.

It is an arithmetic number, because the mean of its divisors is an integer number (1443540).

Almost surely, 2^8557881 is an apocalyptic number.

It is an amenable number.

8557881 is a deficient number, since it is larger than the sum of its proper divisors (2990439).

8557881 is a wasteful number, since it uses less digits than its factorization.

8557881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34455.

The product of its digits is 89600, while the sum is 42.

The square root of 8557881 is about 2925.3856156069. The cubic root of 8557881 is about 204.5449434241.

The spelling of 8557881 in words is "eight million, five hundred fifty-seven thousand, eight hundred eighty-one".