816293379 has 32 divisors (see below), whose sum is σ = 1213793280. Its totient is φ = 483789600.

The previous prime is 816293339. The next prime is 816293393. The reversal of 816293379 is 973392618.

It is not a de Polignac number, because 816293379 - 2¹² = 816289283 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (816293339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 409824 + ... + 411810.

It is an arithmetic number, because the mean of its divisors is an integer number (37931040).

Almost surely, 2^816293379 is an apocalyptic number.

816293379 is a deficient number, since it is larger than the sum of its proper divisors (397499901).

816293379 is a wasteful number, since it uses less digits than its factorization.

816293379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271.

The product of its digits is 489888, while the sum is 48.

The square root of 816293379 is about 28570.8484123241. The cubic root of 816293379 is about 934.5777227041.

The spelling of 816293379 in words is "eight hundred sixteen million, two hundred ninety-three thousand, three hundred seventy-nine".