996572917 has 2 divisors, whose sum is σ = 996572918. Its totient is φ = 996572916.

The previous prime is 996572893. The next prime is 996572977. The reversal of 996572917 is 719275699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 778744836 + 217828081 = 27906^2 + 14759^2 .

It is a cyclic number.

It is not a de Polignac number, because 996572917 - 2⁷ = 996572789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996572977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498286458 + 498286459.

It is an arithmetic number, because the mean of its divisors is an integer number (498286459).

Almost surely, 2^996572917 is an apocalyptic number.

It is an amenable number.

996572917 is a deficient number, since it is larger than the sum of its proper divisors (1).

996572917 is an equidigital number, since it uses as much as digits as its factorization.

996572917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2143260, while the sum is 55.

The square root of 996572917 is about 31568.5431561230. The cubic root of 996572917 is about 998.8563315210.

The spelling of 996572917 in words is "nine hundred ninety-six million, five hundred seventy-two thousand, nine hundred seventeen".