996016409 has 2 divisors, whose sum is σ = 996016410. Its totient is φ = 996016408.

The previous prime is 996016387. The next prime is 996016459. The reversal of 996016409 is 904610699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 673921600 + 322094809 = 25960^2 + 17947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-996016409 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 996016409.

It is not a weakly prime, because it can be changed into another prime (996016459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498008204 + 498008205.

It is an arithmetic number, because the mean of its divisors is an integer number (498008205).

Almost surely, 2^996016409 is an apocalyptic number.

It is an amenable number.

996016409 is a deficient number, since it is larger than the sum of its proper divisors (1).

996016409 is an equidigital number, since it uses as much as digits as its factorization.

996016409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 996016409 is about 31559.7276445789. The cubic root of 996016409 is about 998.6703691988.

The spelling of 996016409 in words is "nine hundred ninety-six million, sixteen thousand, four hundred nine".