808104591 has 24 divisors (see below), whose sum is σ = 1342527264. Its totient is φ = 458827200.

The previous prime is 808104587. The next prime is 808104613. The reversal of 808104591 is 195401808.

It is not a de Polignac number, because 808104591 - 2² = 808104587 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808104541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30960 + ... + 50741.

It is an arithmetic number, because the mean of its divisors is an integer number (55938636).

Almost surely, 2^808104591 is an apocalyptic number.

808104591 is a deficient number, since it is larger than the sum of its proper divisors (534422673).

808104591 is a wasteful number, since it uses less digits than its factorization.

808104591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81871 (or 81868 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 808104591 is about 28427.1804968414. The cubic root of 808104591 is about 931.4420880514.

The spelling of 808104591 in words is "eight hundred eight million, one hundred four thousand, five hundred ninety-one".