885657 has 4 divisors (see below), whose sum is σ = 1180880. Its totient is φ = 590436.

The previous prime is 885623. The next prime is 885679. The reversal of 885657 is 756588.

It is a happy number.

885657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 885657 - 2⁷ = 885529 is a prime.

It is a D-number.

It is a Duffinian number.

885657 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (885607) 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, 147607 + ... + 147612.

It is an arithmetic number, because the mean of its divisors is an integer number (295220).

2⁸⁸⁵⁶⁵⁷ is an apocalyptic number.

It is an amenable number.

885657 is a deficient number, since it is larger than the sum of its proper divisors (295223).

885657 is a wasteful number, since it uses less digits than its factorization.

885657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295222.

The product of its digits is 67200, while the sum is 39.

The square root of 885657 is about 941.0935128881. The cubic root of 885657 is about 96.0333000796.

The spelling of 885657 in words is "eight hundred eighty-five thousand, six hundred fifty-seven".