887117657 has 8 divisors (see below), whose sum is σ = 951428160. Its totient is φ = 824569200.

The previous prime is 887117629. The next prime is 887117663. The reversal of 887117657 is 756711788.

It is a happy number.

887117657 is digitally balanced in base 2, 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 a cyclic number.

It is not a de Polignac number, because 887117657 - 2⁸ = 887117401 is a prime.

It is a super-2 number, since 2×887117657² = 1573955474722339298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (887117617) 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, 439469 + ... + 441482.

It is an arithmetic number, because the mean of its divisors is an integer number (118928520).

Almost surely, 2^887117657 is an apocalyptic number.

It is an amenable number.

887117657 is a deficient number, since it is larger than the sum of its proper divisors (64310503).

887117657 is a wasteful number, since it uses less digits than its factorization.

887117657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881023.

The product of its digits is 658560, while the sum is 50.

The square root of 887117657 is about 29784.5204258857. The cubic root of 887117657 is about 960.8606492683.

The spelling of 887117657 in words is "eight hundred eighty-seven million, one hundred seventeen thousand, six hundred fifty-seven".