816713033 has 4 divisors (see below), whose sum is σ = 822674580. Its totient is φ = 810751488.

The previous prime is 816712979. The next prime is 816713063. The reversal of 816713033 is 330317618.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330317618 = 2 ⋅165158809.

It can be written as a sum of positive squares in 2 ways, for example, as 526794304 + 289918729 = 22952^2 + 17027^2 .

It is a cyclic number.

It is not a de Polignac number, because 816713033 - 2¹⁴ = 816696649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816713063) 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 3 ways as a sum of consecutive naturals, for example, 2980568 + ... + 2980841.

It is an arithmetic number, because the mean of its divisors is an integer number (205668645).

Almost surely, 2^816713033 is an apocalyptic number.

It is an amenable number.

816713033 is a deficient number, since it is larger than the sum of its proper divisors (5961547).

816713033 is a wasteful number, since it uses less digits than its factorization.

816713033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5961546.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 816713033 is about 28578.1915627984. The cubic root of 816713033 is about 934.7378498101.

The spelling of 816713033 in words is "eight hundred sixteen million, seven hundred thirteen thousand, thirty-three".