996659799 has 8 divisors (see below), whose sum is σ = 1407049200. Its totient is φ = 625355136.

The previous prime is 996659779. The next prime is 996659809. The reversal of 996659799 is 997956699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 996659799 - 2²⁷ = 862442071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996659779) 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 7 ways as a sum of consecutive naturals, for example, 9771124 + ... + 9771225.

It is an arithmetic number, because the mean of its divisors is an integer number (175881150).

Almost surely, 2^996659799 is an apocalyptic number.

996659799 is a deficient number, since it is larger than the sum of its proper divisors (410389401).

996659799 is a wasteful number, since it uses less digits than its factorization.

996659799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19542369.

The product of its digits is 74401740, while the sum is 69.

The square root of 996659799 is about 31569.9192111732. The cubic root of 996659799 is about 998.8853577008.

The spelling of 996659799 in words is "nine hundred ninety-six million, six hundred fifty-nine thousand, seven hundred ninety-nine".