99992239 has 2 divisors, whose sum is σ = 99992240. Its totient is φ = 99992238.

The previous prime is 99992219. The next prime is 99992251. The reversal of 99992239 is 93229999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99992239 - 2²⁵ = 66437807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99992209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49996119 + 49996120.

It is an arithmetic number, because the mean of its divisors is an integer number (49996120).

Almost surely, 2^99992239 is an apocalyptic number.

99992239 is a deficient number, since it is larger than the sum of its proper divisors (1).

99992239 is an equidigital number, since it uses as much as digits as its factorization.

99992239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 708588, while the sum is 52.

The square root of 99992239 is about 9999.6119424706. The cubic root of 99992239 is about 464.1468752603.

The spelling of 99992239 in words is "ninety-nine million, nine hundred ninety-two thousand, two hundred thirty-nine".