808831901 has 2 divisors, whose sum is σ = 808831902. Its totient is φ = 808831900.

The previous prime is 808831873. The next prime is 808831913. The reversal of 808831901 is 109138808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 761208100 + 47623801 = 27590^2 + 6901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-808831901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808831981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404415950 + 404415951.

It is an arithmetic number, because the mean of its divisors is an integer number (404415951).

Almost surely, 2^808831901 is an apocalyptic number.

It is an amenable number.

808831901 is a deficient number, since it is larger than the sum of its proper divisors (1).

808831901 is an equidigital number, since it uses as much as digits as its factorization.

808831901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 808831901 is about 28439.9701300828. The cubic root of 808831901 is about 931.7214429829.

The spelling of 808831901 in words is "eight hundred eight million, eight hundred thirty-one thousand, nine hundred one".