516716677 has 2 divisors, whose sum is σ = 516716678. Its totient is φ = 516716676.

The previous prime is 516716639. The next prime is 516716687. The reversal of 516716677 is 776617615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318301281 + 198415396 = 17841^2 + 14086^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516716677 is a prime.

It is a super-2 number, since 2×516716677² = 533992248579844658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516716617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258358338 + 258358339.

It is an arithmetic number, because the mean of its divisors is an integer number (258358339).

Almost surely, 2^516716677 is an apocalyptic number.

It is an amenable number.

516716677 is a deficient number, since it is larger than the sum of its proper divisors (1).

516716677 is an equidigital number, since it uses as much as digits as its factorization.

516716677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 370440, while the sum is 46.

The square root of 516716677 is about 22731.4028823564. The cubic root of 516716677 is about 802.4490973559.

The spelling of 516716677 in words is "five hundred sixteen million, seven hundred sixteen thousand, six hundred seventy-seven".