804668905 has 32 divisors (see below), whose sum is σ = 1099215360. Its totient is φ = 561715200.

The previous prime is 804668881. The next prime is 804668929. The reversal of 804668905 is 509866408.

It is an interprime number because it is at equal distance from previous prime (804668881) and next prime (804668929).

It is not a de Polignac number, because 804668905 - 2²³ = 796280297 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 70605 + ... + 81205.

It is an arithmetic number, because the mean of its divisors is an integer number (34350480).

Almost surely, 2^804668905 is an apocalyptic number.

804668905 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

804668905 is a deficient number, since it is larger than the sum of its proper divisors (294546455).

804668905 is a wasteful number, since it uses less digits than its factorization.

804668905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10689.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 804668905 is about 28366.6865354415. The cubic root of 804668905 is about 930.1201929676.

The spelling of 804668905 in words is "eight hundred four million, six hundred sixty-eight thousand, nine hundred five".