818231996 has 12 divisors (see below), whose sum is σ = 1445289048. Its totient is φ = 405292272.

The previous prime is 818231989. The next prime is 818232029. The reversal of 818231996 is 699132818.

818231996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 818231996.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955451 + ... + 956306.

It is an arithmetic number, because the mean of its divisors is an integer number (120440754).

Almost surely, 2^818231996 is an apocalyptic number.

It is an amenable number.

818231996 is a deficient number, since it is larger than the sum of its proper divisors (627057052).

818231996 is a wasteful number, since it uses less digits than its factorization.

818231996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911868 (or 1911866 counting only the distinct ones).

The product of its digits is 186624, while the sum is 47.

The square root of 818231996 is about 28604.7547795817. The cubic root of 818231996 is about 935.3169813757.

The spelling of 818231996 in words is "eight hundred eighteen million, two hundred thirty-one thousand, nine hundred ninety-six".