99911267 has 2 divisors, whose sum is σ = 99911268. Its totient is φ = 99911266.

The previous prime is 99911263. The next prime is 99911309. The reversal of 99911267 is 76211999.

It is a weak prime.

It is an emirp because it is prime and its reverse (76211999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99911267 - 2² = 99911263 is a prime.

It is a super-2 number, since 2×99911267² = 19964522547090578, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99911263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49955633 + 49955634.

It is an arithmetic number, because the mean of its divisors is an integer number (49955634).

Almost surely, 2^99911267 is an apocalyptic number.

99911267 is a deficient number, since it is larger than the sum of its proper divisors (1).

99911267 is an equidigital number, since it uses as much as digits as its factorization.

99911267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 44.

The square root of 99911267 is about 9995.5623653699. The cubic root of 99911267 is about 464.0215553675.

The spelling of 99911267 in words is "ninety-nine million, nine hundred eleven thousand, two hundred sixty-seven".