99411491 has 2 divisors, whose sum is σ = 99411492. Its totient is φ = 99411490.

The previous prime is 99411469. The next prime is 99411493. The reversal of 99411491 is 19411499.

It is a strong prime.

It is an emirp because it is prime and its reverse (19411499) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99411491 is a prime.

Together with 99411493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99411493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49705745 + 49705746.

It is an arithmetic number, because the mean of its divisors is an integer number (49705746).

Almost surely, 2^99411491 is an apocalyptic number.

99411491 is a deficient number, since it is larger than the sum of its proper divisors (1).

99411491 is an equidigital number, since it uses as much as digits as its factorization.

99411491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 38.

The square root of 99411491 is about 9970.5311292829. The cubic root of 99411491 is about 463.2465523628.

The spelling of 99411491 in words is "ninety-nine million, four hundred eleven thousand, four hundred ninety-one".