996617513 has 2 divisors, whose sum is σ = 996617514. Its totient is φ = 996617512.

The previous prime is 996617491. The next prime is 996617519. The reversal of 996617513 is 315716699.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 991179289 + 5438224 = 31483^2 + 2332^2 .

It is a cyclic number.

It is not a de Polignac number, because 996617513 - 2⁸ = 996617257 is a prime.

It is a Chen prime.

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, 498308756 + 498308757.

It is an arithmetic number, because the mean of its divisors is an integer number (498308757).

Almost surely, 2^996617513 is an apocalyptic number.

It is an amenable number.

996617513 is a deficient number, since it is larger than the sum of its proper divisors (1).

996617513 is an equidigital number, since it uses as much as digits as its factorization.

996617513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 306180, while the sum is 47.

The square root of 996617513 is about 31569.2494842687. The cubic root of 996617513 is about 998.8712306926.

The spelling of 996617513 in words is "nine hundred ninety-six million, six hundred seventeen thousand, five hundred thirteen".