856332804 has 12 divisors (see below), whose sum is σ = 1998109904. Its totient is φ = 285444264.

The previous prime is 856332797. The next prime is 856332811. The reversal of 856332804 is 408233658.

It is an interprime number because it is at equal distance from previous prime (856332797) and next prime (856332811).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35680522 + ... + 35680545.

Almost surely, 2^856332804 is an apocalyptic number.

It is an amenable number.

856332804 is an abundant number, since it is smaller than the sum of its proper divisors (1141777100).

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

856332804 is a wasteful number, since it uses less digits than its factorization.

856332804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71361074 (or 71361072 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 856332804 is about 29263.1646272238. The cubic root of 856332804 is about 949.6149146550.

The spelling of 856332804 in words is "eight hundred fifty-six million, three hundred thirty-two thousand, eight hundred four".