816796531 has 8 divisors (see below), whose sum is σ = 843042240. Its totient is φ = 790964328.

The previous prime is 816796523. The next prime is 816796537. The reversal of 816796531 is 135697618.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 816796531 - 2³ = 816796523 is a prime.

It is a super-2 number, since 2×816796531² = 1334313146107267922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (816796537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99361 + ... + 107266.

It is an arithmetic number, because the mean of its divisors is an integer number (105380280).

Almost surely, 2^816796531 is an apocalyptic number.

816796531 is a deficient number, since it is larger than the sum of its proper divisors (26245709).

816796531 is a wasteful number, since it uses less digits than its factorization.

816796531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206753.

The product of its digits is 272160, while the sum is 46.

The square root of 816796531 is about 28579.6523946671. The cubic root of 816796531 is about 934.7697035450.

The spelling of 816796531 in words is "eight hundred sixteen million, seven hundred ninety-six thousand, five hundred thirty-one".