870616986 has 8 divisors (see below), whose sum is σ = 1741233984. Its totient is φ = 290205660.

The previous prime is 870616973. The next prime is 870617023. The reversal of 870616986 is 689616078.

It is a happy number.

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

870616986 is an admirable number.

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 72551410 + ... + 72551421.

It is an arithmetic number, because the mean of its divisors is an integer number (217654248).

Almost surely, 2^870616986 is an apocalyptic number.

870616986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

870616986 is a wasteful number, since it uses less digits than its factorization.

870616986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145102836.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 870616986 is about 29506.2194460761. The cubic root of 870616986 is about 954.8658879864.

The spelling of 870616986 in words is "eight hundred seventy million, six hundred sixteen thousand, nine hundred eighty-six".