996686699 has 2 divisors, whose sum is σ = 996686700. Its totient is φ = 996686698.

The previous prime is 996686689. The next prime is 996686701.

996686699 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 996686699 - 2²⁰ = 995638123 is a prime.

Together with 996686701, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (996686689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498343349 + 498343350.

It is an arithmetic number, because the mean of its divisors is an integer number (498343350).

Almost surely, 2^996686699 is an apocalyptic number.

996686699 is a deficient number, since it is larger than the sum of its proper divisors (1).

996686699 is an equidigital number, since it uses as much as digits as its factorization.

996686699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68024448, while the sum is 68.

The square root of 996686699 is about 31570.3452467660. The cubic root of 996686699 is about 998.8943443094.

The spelling of 996686699 in words is "nine hundred ninety-six million, six hundred eighty-six thousand, six hundred ninety-nine".