99289999 has 2 divisors, whose sum is σ = 99290000. Its totient is φ = 99289998.

The previous prime is 99289963. The next prime is 99290039. The reversal of 99289999 is 99998299.

It is a weak prime.

It is an emirp because it is prime and its reverse (99998299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99289999 - 2⁷ = 99289871 is a prime.

99289999 is a modest number, since divided by 9999 gives 9928 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 99289999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99289909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49644999 + 49645000.

It is an arithmetic number, because the mean of its divisors is an integer number (49645000).

Almost surely, 2^99289999 is an apocalyptic number.

99289999 is a deficient number, since it is larger than the sum of its proper divisors (1).

99289999 is an equidigital number, since it uses as much as digits as its factorization.

99289999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8503056, while the sum is 64.

The square root of 99289999 is about 9964.4367126296. The cubic root of 99289999 is about 463.0577623404.

The spelling of 99289999 in words is "ninety-nine million, two hundred eighty-nine thousand, nine hundred ninety-nine".