856244746 has 32 divisors (see below), whose sum is σ = 1560798720. Its totient is φ = 343908096.

The previous prime is 856244737. The next prime is 856244761. The reversal of 856244746 is 647442658.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 856244696 and 856244705.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49356 + ... + 64408.

It is an arithmetic number, because the mean of its divisors is an integer number (48774960).

Almost surely, 2^856244746 is an apocalyptic number.

856244746 is a deficient number, since it is larger than the sum of its proper divisors (704553974).

856244746 is a wasteful number, since it uses less digits than its factorization.

856244746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15318.

The product of its digits is 1290240, while the sum is 46.

The square root of 856244746 is about 29261.6600007587. The cubic root of 856244746 is about 949.5823634257.

The spelling of 856244746 in words is "eight hundred fifty-six million, two hundred forty-four thousand, seven hundred forty-six".