996617879 has 2 divisors, whose sum is σ = 996617880. Its totient is φ = 996617878.

The previous prime is 996617833. The next prime is 996617927. The reversal of 996617879 is 978716699.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 996617879 - 2¹⁶ = 996552343 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996617179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498308939 + 498308940.

It is an arithmetic number, because the mean of its divisors is an integer number (498308940).

Almost surely, 2^996617879 is an apocalyptic number.

996617879 is a deficient number, since it is larger than the sum of its proper divisors (1).

996617879 is an equidigital number, since it uses as much as digits as its factorization.

996617879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10287648, while the sum is 62.

The square root of 996617879 is about 31569.2552810484. The cubic root of 996617879 is about 998.8713529685.

The spelling of 996617879 in words is "nine hundred ninety-six million, six hundred seventeen thousand, eight hundred seventy-nine".