99904319 has 2 divisors, whose sum is σ = 99904320. Its totient is φ = 99904318.

The previous prime is 99904283. The next prime is 99904349. The reversal of 99904319 is 91340999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99904319 - 2²⁴ = 83127103 is a prime.

It is a super-2 number, since 2×99904319² = 19961745909707522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99904319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99904349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49952159 + 49952160.

It is an arithmetic number, because the mean of its divisors is an integer number (49952160).

Almost surely, 2^99904319 is an apocalyptic number.

99904319 is a deficient number, since it is larger than the sum of its proper divisors (1).

99904319 is an equidigital number, since it uses as much as digits as its factorization.

99904319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 99904319 is about 9995.2148050955. The cubic root of 99904319 is about 464.0107988346.

The spelling of 99904319 in words is "ninety-nine million, nine hundred four thousand, three hundred nineteen".