8404856 has 16 divisors (see below), whose sum is σ = 15923040. Its totient is φ = 4158720.

The previous prime is 8404849. The next prime is 8404871. The reversal of 8404856 is 6584048.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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, 4640 + ... + 6191.

It is an arithmetic number, because the mean of its divisors is an integer number (995190).

Almost surely, 2^8404856 is an apocalyptic number.

It is an amenable number.

8404856 is a deficient number, since it is larger than the sum of its proper divisors (7518184).

8404856 is a wasteful number, since it uses less digits than its factorization.

8404856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10934 (or 10930 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 8404856 is about 2899.1129677886. The cubic root of 8404856 is about 203.3184354100.

The spelling of 8404856 in words is "eight million, four hundred four thousand, eight hundred fifty-six".