856862616 has 32 divisors (see below), whose sum is σ = 2158516800. Its totient is φ = 283439520.

The previous prime is 856862609. The next prime is 856862639. The reversal of 856862616 is 616268658.

It is a happy number.

856862616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133126 + ... + 139413.

It is an arithmetic number, because the mean of its divisors is an integer number (67453650).

Almost surely, 2^856862616 is an apocalyptic number.

It is an amenable number.

856862616 is an abundant number, since it is smaller than the sum of its proper divisors (1301654184).

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

856862616 is a wasteful number, since it uses less digits than its factorization.

856862616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272679 (or 272675 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 856862616 is about 29272.2157685407. The cubic root of 856862616 is about 949.8107161204.

The spelling of 856862616 in words is "eight hundred fifty-six million, eight hundred sixty-two thousand, six hundred sixteen".