820832713 has 4 divisors (see below), whose sum is σ = 823861888. Its totient is φ = 817803540.

The previous prime is 820832711. The next prime is 820832723. The reversal of 820832713 is 317238028.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 820832713 - 2¹ = 820832711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (820832711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1514181 + ... + 1514722.

It is an arithmetic number, because the mean of its divisors is an integer number (205965472).

Almost surely, 2^820832713 is an apocalyptic number.

It is an amenable number.

820832713 is a deficient number, since it is larger than the sum of its proper divisors (3029175).

820832713 is a wasteful number, since it uses less digits than its factorization.

820832713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3029174.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 820832713 is about 28650.1782367929. The cubic root of 820832713 is about 936.3068889373.

The spelling of 820832713 in words is "eight hundred twenty million, eight hundred thirty-two thousand, seven hundred thirteen".