99411779 has 2 divisors, whose sum is σ = 99411780. Its totient is φ = 99411778.

The previous prime is 99411751. The next prime is 99411799. The reversal of 99411779 is 97711499.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99411779 - 2¹² = 99407683 is a prime.

It is not a weakly prime, because it can be changed into another prime (99411709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49705889 + 49705890.

It is an arithmetic number, because the mean of its divisors is an integer number (49705890).

Almost surely, 2^99411779 is an apocalyptic number.

99411779 is a deficient number, since it is larger than the sum of its proper divisors (1).

99411779 is an equidigital number, since it uses as much as digits as its factorization.

99411779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 47.

The square root of 99411779 is about 9970.5455718331. The cubic root of 99411779 is about 463.2469997118.

The spelling of 99411779 in words is "ninety-nine million, four hundred eleven thousand, seven hundred seventy-nine".