804442931 has 4 divisors (see below), whose sum is σ = 804619752. Its totient is φ = 804266112.

The previous prime is 804442909. The next prime is 804442939. The reversal of 804442931 is 139244408.

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

It is a cyclic number.

It is not a de Polignac number, because 804442931 - 2⁶ = 804442867 is a prime.

It is a super-2 number, since 2×804442931² = 1294256858471741522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 804442891 and 804442900.

It is not an unprimeable number, because it can be changed into a prime (804442939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81401 + ... + 90746.

It is an arithmetic number, because the mean of its divisors is an integer number (201154938).

Almost surely, 2^804442931 is an apocalyptic number.

804442931 is a deficient number, since it is larger than the sum of its proper divisors (176821).

804442931 is a wasteful number, since it uses less digits than its factorization.

804442931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176820.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 804442931 is about 28362.7031680692. The cubic root of 804442931 is about 930.0331167149.

The spelling of 804442931 in words is "eight hundred four million, four hundred forty-two thousand, nine hundred thirty-one".