99904499 has 2 divisors, whose sum is σ = 99904500. Its totient is φ = 99904498.

The previous prime is 99904487. The next prime is 99904501. The reversal of 99904499 is 99440999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99904499 - 2¹² = 99900403 is a prime.

Together with 99904501, it forms a pair of twin primes.

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 99904499.

It is not a weakly prime, because it can be changed into another prime (99904439) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49952249 + 49952250.

It is an arithmetic number, because the mean of its divisors is an integer number (49952250).

Almost surely, 2^99904499 is an apocalyptic number.

99904499 is a deficient number, since it is larger than the sum of its proper divisors (1).

99904499 is an equidigital number, since it uses as much as digits as its factorization.

99904499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 944784, while the sum is 53.

The square root of 99904499 is about 9995.2238094002. The cubic root of 99904499 is about 464.0110775075.

The spelling of 99904499 in words is "ninety-nine million, nine hundred four thousand, four hundred ninety-nine".