856704083 has 4 divisors (see below), whose sum is σ = 857506560. Its totient is φ = 855901608.

The previous prime is 856704071. The next prime is 856704169. The reversal of 856704083 is 380407658.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-856704083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 856704083.

It is not an unprimeable number, because it can be changed into a prime (856704383) by changing a digit.

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, 399635 + ... + 401772.

It is an arithmetic number, because the mean of its divisors is an integer number (214376640).

Almost surely, 2^856704083 is an apocalyptic number.

856704083 is a deficient number, since it is larger than the sum of its proper divisors (802477).

856704083 is a wasteful number, since it uses less digits than its factorization.

856704083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802476.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 856704083 is about 29269.5077341591. The cubic root of 856704083 is about 949.7521358895.

The spelling of 856704083 in words is "eight hundred fifty-six million, seven hundred four thousand, eighty-three".