996997179 has 4 divisors (see below), whose sum is σ = 1329329576. Its totient is φ = 664664784.

The previous prime is 996997171. The next prime is 996997201. The reversal of 996997179 is 971799699.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 996997179 - 2³ = 996997171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (996997171) 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 in 3 ways as a sum of consecutive naturals, for example, 166166194 + ... + 166166199.

It is an arithmetic number, because the mean of its divisors is an integer number (332332394).

Almost surely, 2^996997179 is an apocalyptic number.

996997179 is a deficient number, since it is larger than the sum of its proper divisors (332332397).

996997179 is a wasteful number, since it uses less digits than its factorization.

996997179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332332396.

The product of its digits is 17360406, while the sum is 66.

The square root of 996997179 is about 31575.2621366791. The cubic root of 996997179 is about 998.9980561104.

The spelling of 996997179 in words is "nine hundred ninety-six million, nine hundred ninety-seven thousand, one hundred seventy-nine".