996409499 has 2 divisors, whose sum is σ = 996409500. Its totient is φ = 996409498.

The previous prime is 996409493. The next prime is 996409507. The reversal of 996409499 is 994904699.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-996409499 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (996409493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498204749 + 498204750.

It is an arithmetic number, because the mean of its divisors is an integer number (498204750).

Almost surely, 2^996409499 is an apocalyptic number.

996409499 is a deficient number, since it is larger than the sum of its proper divisors (1).

996409499 is an equidigital number, since it uses as much as digits as its factorization.

996409499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5668704, while the sum is 59.

The square root of 996409499 is about 31565.9547455799. The cubic root of 996409499 is about 998.8017310584.

The spelling of 996409499 in words is "nine hundred ninety-six million, four hundred nine thousand, four hundred ninety-nine".