808195923 has 6 divisors (see below), whose sum is σ = 1167394124. Its totient is φ = 538797276.

The previous prime is 808195909. The next prime is 808195933. The reversal of 808195923 is 329591808.

It is a happy number.

It is not a de Polignac number, because 808195923 - 2⁸ = 808195667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (808195903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44899765 + ... + 44899782.

Almost surely, 2^808195923 is an apocalyptic number.

808195923 is a deficient number, since it is larger than the sum of its proper divisors (359198201).

808195923 is a wasteful number, since it uses less digits than its factorization.

808195923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89799553 (or 89799550 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 808195923 is about 28428.7868717608. The cubic root of 808195923 is about 931.4771772651.

The spelling of 808195923 in words is "eight hundred eight million, one hundred ninety-five thousand, nine hundred twenty-three".