804118779 has 16 divisors (see below), whose sum is σ = 1253987200. Its totient is φ = 507864168.

The previous prime is 804118771. The next prime is 804118787. The reversal of 804118779 is 977811408.

It is an interprime number because it is at equal distance from previous prime (804118771) and next prime (804118787).

It is not a de Polignac number, because 804118779 - 2³ = 804118771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (804118771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 783229 + ... + 784254.

It is an arithmetic number, because the mean of its divisors is an integer number (78374200).

Almost surely, 2^804118779 is an apocalyptic number.

804118779 is a deficient number, since it is larger than the sum of its proper divisors (449868421).

804118779 is a wasteful number, since it uses less digits than its factorization.

804118779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567511 (or 1567505 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The square root of 804118779 is about 28356.9881863360. The cubic root of 804118779 is about 929.9081803209.

The spelling of 804118779 in words is "eight hundred four million, one hundred eighteen thousand, seven hundred seventy-nine".