90799099 has 2 divisors, whose sum is σ = 90799100. Its totient is φ = 90799098.

The previous prime is 90799063. The next prime is 90799117. The reversal of 90799099 is 99099709.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90799099 - 2²³ = 82410491 is a prime.

It is not a weakly prime, because it can be changed into another prime (90799019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45399549 + 45399550.

It is an arithmetic number, because the mean of its divisors is an integer number (45399550).

Almost surely, 2^90799099 is an apocalyptic number.

90799099 is a deficient number, since it is larger than the sum of its proper divisors (1).

90799099 is an equidigital number, since it uses as much as digits as its factorization.

90799099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 413343, while the sum is 52.

The square root of 90799099 is about 9528.8561223265. The cubic root of 90799099 is about 449.4628966369.

The spelling of 90799099 in words is "ninety million, seven hundred ninety-nine thousand, ninety-nine".