816676533 has 8 divisors (see below), whose sum is σ = 1209891200. Its totient is φ = 544451004.

The previous prime is 816676519. The next prime is 816676547. The reversal of 816676533 is 335676618.

It is an interprime number because it is at equal distance from previous prime (816676519) and next prime (816676547).

It is not a de Polignac number, because 816676533 - 2¹⁷ = 816545461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816676513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15123613 + ... + 15123666.

It is an arithmetic number, because the mean of its divisors is an integer number (151236400).

Almost surely, 2^816676533 is an apocalyptic number.

It is an amenable number.

816676533 is a deficient number, since it is larger than the sum of its proper divisors (393214667).

816676533 is a wasteful number, since it uses less digits than its factorization.

816676533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30247288 (or 30247282 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 816676533 is about 28577.5529568226. The cubic root of 816676533 is about 934.7239247069.

The spelling of 816676533 in words is "eight hundred sixteen million, six hundred seventy-six thousand, five hundred thirty-three".