808347990 has 32 divisors (see below), whose sum is σ = 1943883360. Its totient is φ = 215131904.

The previous prime is 808347979. The next prime is 808348007. The reversal of 808347990 is 99743808.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11199 + ... + 41738.

It is an arithmetic number, because the mean of its divisors is an integer number (60746355).

Almost surely, 2^808347990 is an apocalyptic number.

808347990 is an abundant number, since it is smaller than the sum of its proper divisors (1135535370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

808347990 is a wasteful number, since it uses less digits than its factorization.

808347990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53456.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 808347990 is about 28431.4612709231. The cubic root of 808347990 is about 931.5355946418.

The spelling of 808347990 in words is "eight hundred eight million, three hundred forty-seven thousand, nine hundred ninety".