879796817 has 2 divisors, whose sum is σ = 879796818. Its totient is φ = 879796816.

The previous prime is 879796789. The next prime is 879796823. The reversal of 879796817 is 718697978.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 830361856 + 49434961 = 28816^2 + 7031^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-879796817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 879796817.

It is not a weakly prime, because it can be changed into another prime (879796847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439898408 + 439898409.

It is an arithmetic number, because the mean of its divisors is an integer number (439898409).

Almost surely, 2^879796817 is an apocalyptic number.

It is an amenable number.

879796817 is a deficient number, since it is larger than the sum of its proper divisors (1).

879796817 is an equidigital number, since it uses as much as digits as its factorization.

879796817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10668672, while the sum is 62.

The square root of 879796817 is about 29661.3691019144. The cubic root of 879796817 is about 958.2102130795.

The spelling of 879796817 in words is "eight hundred seventy-nine million, seven hundred ninety-six thousand, eight hundred seventeen".