99902939 has 2 divisors, whose sum is σ = 99902940. Its totient is φ = 99902938.

The previous prime is 99902911. The next prime is 99902947. The reversal of 99902939 is 93920999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99902939 - 2²⁰ = 98854363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99902039) 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, 49951469 + 49951470.

It is an arithmetic number, because the mean of its divisors is an integer number (49951470).

Almost surely, 2^99902939 is an apocalyptic number.

99902939 is a deficient number, since it is larger than the sum of its proper divisors (1).

99902939 is an equidigital number, since it uses as much as digits as its factorization.

99902939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 354294, while the sum is 50.

The square root of 99902939 is about 9995.1457718234. The cubic root of 99902939 is about 464.0086623309.

The spelling of 99902939 in words is "ninety-nine million, nine hundred two thousand, nine hundred thirty-nine".