816303386 has 8 divisors (see below), whose sum is σ = 1224686964. Its totient is φ = 408074400.

The previous prime is 816303359. The next prime is 816303407. The reversal of 816303386 is 683303618.

816303386 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 2 ways, for example, as 797215225 + 19088161 = 28235^2 + 4369^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 24395 + ... + 47198.

Almost surely, 2^816303386 is an apocalyptic number.

816303386 is a deficient number, since it is larger than the sum of its proper divisors (408383578).

816303386 is a wasteful number, since it uses less digits than its factorization.

816303386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77296.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 816303386 is about 28571.0235378434. The cubic root of 816303386 is about 934.5815417073.

The spelling of 816303386 in words is "eight hundred sixteen million, three hundred three thousand, three hundred eighty-six".