20092399 has 2 divisors, whose sum is σ = 20092400. Its totient is φ = 20092398.

The previous prime is 20092379. The next prime is 20092427. The reversal of 20092399 is 99329002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20092399 - 2¹¹ = 20090351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20092339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10046199 + 10046200.

It is an arithmetic number, because the mean of its divisors is an integer number (10046200).

Almost surely, 2^20092399 is an apocalyptic number.

20092399 is a deficient number, since it is larger than the sum of its proper divisors (1).

20092399 is an equidigital number, since it uses as much as digits as its factorization.

20092399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 20092399 is about 4482.4545731106. The cubic root of 20092399 is about 271.8591353582.

The spelling of 20092399 in words is "twenty million, ninety-two thousand, three hundred ninety-nine".