804901878 has 24 divisors (see below), whose sum is σ = 1902495816. Its totient is φ = 243909600.

The previous prime is 804901847. The next prime is 804901927. The reversal of 804901878 is 878109408.

804901878 is a `hidden beast` number, since 80 + 490 + 1 + 87 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2032383 + ... + 2032778.

It is an arithmetic number, because the mean of its divisors is an integer number (79270659).

Almost surely, 2^804901878 is an apocalyptic number.

804901878 is an abundant number, since it is smaller than the sum of its proper divisors (1097593938).

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

804901878 is a wasteful number, since it uses less digits than its factorization.

804901878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4065180 (or 4065177 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 804901878 is about 28370.7926924857. The cubic root of 804901878 is about 930.2099491314.

The spelling of 804901878 in words is "eight hundred four million, nine hundred one thousand, eight hundred seventy-eight".