99791311 has 2 divisors, whose sum is σ = 99791312. Its totient is φ = 99791310.

The previous prime is 99791269. The next prime is 99791323. The reversal of 99791311 is 11319799.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99791311 - 2¹³ = 99783119 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99791611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49895655 + 49895656.

It is an arithmetic number, because the mean of its divisors is an integer number (49895656).

Almost surely, 2^99791311 is an apocalyptic number.

99791311 is a deficient number, since it is larger than the sum of its proper divisors (1).

99791311 is an equidigital number, since it uses as much as digits as its factorization.

99791311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15309, while the sum is 40.

The square root of 99791311 is about 9989.5601004248. The cubic root of 99791311 is about 463.8357756495.

The spelling of 99791311 in words is "ninety-nine million, seven hundred ninety-one thousand, three hundred eleven".