816306836 has 6 divisors (see below), whose sum is σ = 1428536970. Its totient is φ = 408153416.

The previous prime is 816306779. The next prime is 816306847. The reversal of 816306836 is 638603618.

816306836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 726625936 + 89680900 = 26956^2 + 9470^2 .

It is a junction number, because it is equal to n+sod(n) for n = 816306793 and 816306802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102038351 + ... + 102038358.

It is an arithmetic number, because the mean of its divisors is an integer number (238089495).

Almost surely, 2^816306836 is an apocalyptic number.

It is an amenable number.

816306836 is a deficient number, since it is larger than the sum of its proper divisors (612230134).

816306836 is a wasteful number, since it uses less digits than its factorization.

816306836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204076713 (or 204076711 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 816306836 is about 28571.0839136355. The cubic root of 816306836 is about 934.5828583345.

The spelling of 816306836 in words is "eight hundred sixteen million, three hundred six thousand, eight hundred thirty-six".