856012650 has 48 divisors (see below), whose sum is σ = 2135247264. Its totient is φ = 226943680.

The previous prime is 856012631. The next prime is 856012667. The reversal of 856012650 is 56210658.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9457 + ... + 42443.

It is an arithmetic number, because the mean of its divisors is an integer number (44484318).

Almost surely, 2^856012650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 856012650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1067623632).

856012650 is an abundant number, since it is smaller than the sum of its proper divisors (1279234614).

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

856012650 is a wasteful number, since it uses less digits than its factorization.

856012650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33175 (or 33170 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 856012650 is about 29257.6938599063. The cubic root of 856012650 is about 949.4965568905.

The spelling of 856012650 in words is "eight hundred fifty-six million, twelve thousand, six hundred fifty".