990676499 has 2 divisors, whose sum is σ = 990676500. Its totient is φ = 990676498.

The previous prime is 990676363. The next prime is 990676507. The reversal of 990676499 is 994676099.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 990676499 - 2⁸ = 990676243 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (990673499) 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, 495338249 + 495338250.

It is an arithmetic number, because the mean of its divisors is an integer number (495338250).

Almost surely, 2^990676499 is an apocalyptic number.

990676499 is a deficient number, since it is larger than the sum of its proper divisors (1).

990676499 is an equidigital number, since it uses as much as digits as its factorization.

990676499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6613488, while the sum is 59.

The square root of 990676499 is about 31475.0138840319. The cubic root of 990676499 is about 996.8824573611.

The spelling of 990676499 in words is "nine hundred ninety million, six hundred seventy-six thousand, four hundred ninety-nine".