99992449 has 2 divisors, whose sum is σ = 99992450. Its totient is φ = 99992448.

The previous prime is 99992447. The next prime is 99992461. The reversal of 99992449 is 94429999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61465600 + 38526849 = 7840^2 + 6207^2 .

It is a cyclic number.

It is not a de Polignac number, because 99992449 - 2¹ = 99992447 is a prime.

Together with 99992447, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 99992449.

It is not a weakly prime, because it can be changed into another prime (99992447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49996224 + 49996225.

It is an arithmetic number, because the mean of its divisors is an integer number (49996225).

Almost surely, 2^99992449 is an apocalyptic number.

It is an amenable number.

99992449 is a deficient number, since it is larger than the sum of its proper divisors (1).

99992449 is an equidigital number, since it uses as much as digits as its factorization.

99992449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1889568, while the sum is 55.

The square root of 99992449 is about 9999.6224428725. The cubic root of 99992449 is about 464.1472001881.

The spelling of 99992449 in words is "ninety-nine million, nine hundred ninety-two thousand, four hundred forty-nine".