856078332 has 12 divisors (see below), whose sum is σ = 1997516136. Its totient is φ = 285359440.

The previous prime is 856078297. The next prime is 856078337. The reversal of 856078332 is 233870658.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×856078332² = 1465740221039804448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856078337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35669919 + ... + 35669942.

It is an arithmetic number, because the mean of its divisors is an integer number (166459678).

Almost surely, 2^856078332 is an apocalyptic number.

It is an amenable number.

856078332 is an abundant number, since it is smaller than the sum of its proper divisors (1141437804).

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

856078332 is a wasteful number, since it uses less digits than its factorization.

856078332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71339868 (or 71339866 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 856078332 is about 29258.8163123528. The cubic root of 856078332 is about 949.5208412815.

It can be divided in two parts, 85607 and 8332, that added together give a palindrome (93939).

The spelling of 856078332 in words is "eight hundred fifty-six million, seventy-eight thousand, three hundred thirty-two".