996984169 has 6 divisors (see below), whose sum is σ = 1052219130. Its totient is φ = 944510976.

The previous prime is 996984143. The next prime is 996984173. The reversal of 996984169 is 961489699.

It can be written as a sum of positive squares in only one way, i.e., 953265625 + 43718544 = 30875^2 + 6612^2 .

It is not a de Polignac number, because 996984169 - 2⁵ = 996984137 is a prime.

It is a super-2 number, since 2×996984169² = 1987954866473241122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (996984119) 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 in 5 ways as a sum of consecutive naturals, for example, 1380504 + ... + 1381225.

It is an arithmetic number, because the mean of its divisors is an integer number (175369855).

Almost surely, 2^996984169 is an apocalyptic number.

It is an amenable number.

996984169 is a deficient number, since it is larger than the sum of its proper divisors (55234961).

996984169 is a wasteful number, since it uses less digits than its factorization.

996984169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761767 (or 2761748 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 61.

The square root of 996984169 is about 31575.0561202985. The cubic root of 996984169 is about 998.9937107216.

The spelling of 996984169 in words is "nine hundred ninety-six million, nine hundred eighty-four thousand, one hundred sixty-nine".