804494878 has 12 divisors (see below), whose sum is σ = 1326419640. Its totient is φ = 365679380.

The previous prime is 804494861. The next prime is 804494879. The reversal of 804494878 is 878494408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804494879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1661938 + ... + 1662421.

It is an arithmetic number, because the mean of its divisors is an integer number (110534970).

Almost surely, 2^804494878 is an apocalyptic number.

804494878 is a deficient number, since it is larger than the sum of its proper divisors (521924762).

804494878 is a wasteful number, since it uses less digits than its factorization.

804494878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324383 (or 3324372 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 52.

The square root of 804494878 is about 28363.6189157872. The cubic root of 804494878 is about 930.0531352845.

The spelling of 804494878 in words is "eight hundred four million, four hundred ninety-four thousand, eight hundred seventy-eight".