862856516 has 12 divisors (see below), whose sum is σ = 1525566588. Its totient is φ = 426980352.

The previous prime is 862856497. The next prime is 862856531. The reversal of 862856516 is 615658268.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 211586116 + 651270400 = 14546^2 + 25520^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1111541 + ... + 1112316.

It is an arithmetic number, because the mean of its divisors is an integer number (127130549).

Almost surely, 2^862856516 is an apocalyptic number.

It is an amenable number.

862856516 is a deficient number, since it is larger than the sum of its proper divisors (662710072).

862856516 is a wasteful number, since it uses less digits than its factorization.

862856516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223958 (or 2223956 counting only the distinct ones).

The product of its digits is 691200, while the sum is 47.

The square root of 862856516 is about 29374.4194155391. The cubic root of 862856516 is about 952.0202679700.

The spelling of 862856516 in words is "eight hundred sixty-two million, eight hundred fifty-six thousand, five hundred sixteen".