870057965 has 12 divisors (see below), whose sum is σ = 1214530236. Its totient is φ = 596611008.

The previous prime is 870057953. The next prime is 870057973. The reversal of 870057965 is 569750078.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 90364036 + 779693929 = 9506^2 + 27923^2 .

It is not a de Polignac number, because 870057965 - 2⁶ = 870057901 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1775384 + ... + 1775873.

It is an arithmetic number, because the mean of its divisors is an integer number (101210853).

Almost surely, 2^870057965 is an apocalyptic number.

It is an amenable number.

870057965 is a deficient number, since it is larger than the sum of its proper divisors (344472271).

870057965 is a wasteful number, since it uses less digits than its factorization.

870057965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3551276 (or 3551269 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 870057965 is about 29496.7449899137. The cubic root of 870057965 is about 954.6614718917.

The spelling of 870057965 in words is "eight hundred seventy million, fifty-seven thousand, nine hundred sixty-five".