99791269 has 2 divisors, whose sum is σ = 99791270. Its totient is φ = 99791268.

The previous prime is 99791267. The next prime is 99791311. The reversal of 99791269 is 96219799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54390625 + 45400644 = 7375^2 + 6738^2 .

It is a cyclic number.

It is not a de Polignac number, because 99791269 - 2¹ = 99791267 is a prime.

It is a super-2 number, since 2×99791269² = 19916594737260722, which contains 22 as substring.

Together with 99791267, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99791267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49895634 + 49895635.

It is an arithmetic number, because the mean of its divisors is an integer number (49895635).

Almost surely, 2^99791269 is an apocalyptic number.

It is an amenable number.

99791269 is a deficient number, since it is larger than the sum of its proper divisors (1).

99791269 is an equidigital number, since it uses as much as digits as its factorization.

99791269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 551124, while the sum is 52.

The square root of 99791269 is about 9989.5579982300. The cubic root of 99791269 is about 463.8357105767.

The spelling of 99791269 in words is "ninety-nine million, seven hundred ninety-one thousand, two hundred sixty-nine".