870616985 has 8 divisors (see below), whose sum is σ = 1193989056. Its totient is φ = 596994480.

The previous prime is 870616973. The next prime is 870617023. The reversal of 870616985 is 589616078.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-870616985 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12437351 + ... + 12437420.

It is an arithmetic number, because the mean of its divisors is an integer number (149248632).

Almost surely, 2^870616985 is an apocalyptic number.

It is an amenable number.

870616985 is a deficient number, since it is larger than the sum of its proper divisors (323372071).

870616985 is a wasteful number, since it uses less digits than its factorization.

870616985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24874783.

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 870616985 is about 29506.2194291305. The cubic root of 870616985 is about 954.8658876208.

The spelling of 870616985 in words is "eight hundred seventy million, six hundred sixteen thousand, nine hundred eighty-five".