887215688 has 12 divisors (see below), whose sum is σ = 1663687395. Its totient is φ = 443565720.

The previous prime is 887215673. The next prime is 887215717. The reversal of 887215688 is 886512788.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 443607844 + 443607844 = 21062^2 + 21062^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=21062.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 78983 + ... + 89513.

Almost surely, 2^887215688 is an apocalyptic number.

It is an amenable number.

887215688 is a deficient number, since it is larger than the sum of its proper divisors (776471707).

887215688 is an frugal number, since it uses more digits than its factorization.

887215688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21068 (or 10533 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 53.

The square root of 887215688 is about 29786.1660507021. The cubic root of 887215688 is about 960.8960412896.

The spelling of 887215688 in words is "eight hundred eighty-seven million, two hundred fifteen thousand, six hundred eighty-eight".