996617539 has 2 divisors, whose sum is σ = 996617540. Its totient is φ = 996617538.

The previous prime is 996617527. The next prime is 996617689. The reversal of 996617539 is 935716699.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-996617539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 996617539.

It is not a weakly prime, because it can be changed into another prime (996617519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498308769 + 498308770.

It is an arithmetic number, because the mean of its divisors is an integer number (498308770).

Almost surely, 2^996617539 is an apocalyptic number.

996617539 is a deficient number, since it is larger than the sum of its proper divisors (1).

996617539 is an equidigital number, since it uses as much as digits as its factorization.

996617539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2755620, while the sum is 55.

The square root of 996617539 is about 31569.2498960618. The cubic root of 996617539 is about 998.8712393788.

The spelling of 996617539 in words is "nine hundred ninety-six million, six hundred seventeen thousand, five hundred thirty-nine".