996818899 has 2 divisors, whose sum is σ = 996818900. Its totient is φ = 996818898.

The previous prime is 996818881. The next prime is 996818929. The reversal of 996818899 is 998818699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 996818899 - 2⁹ = 996818387 is a prime.

It is not a weakly prime, because it can be changed into another prime (996818399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498409449 + 498409450.

It is an arithmetic number, because the mean of its divisors is an integer number (498409450).

Almost surely, 2^996818899 is an apocalyptic number.

996818899 is a deficient number, since it is larger than the sum of its proper divisors (1).

996818899 is an equidigital number, since it uses as much as digits as its factorization.

996818899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20155392, while the sum is 67.

The square root of 996818899 is about 31572.4389143443. The cubic root of 996818899 is about 998.9385066305.

The spelling of 996818899 in words is "nine hundred ninety-six million, eight hundred eighteen thousand, eight hundred ninety-nine".