99902039 has 2 divisors, whose sum is σ = 99902040. Its totient is φ = 99902038.

The previous prime is 99902021. The next prime is 99902059. The reversal of 99902039 is 93020999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99902039 - 2⁸ = 99901783 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99901987 and 99902005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99902059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49951019 + 49951020.

It is an arithmetic number, because the mean of its divisors is an integer number (49951020).

Almost surely, 2^99902039 is an apocalyptic number.

99902039 is a deficient number, since it is larger than the sum of its proper divisors (1).

99902039 is an equidigital number, since it uses as much as digits as its factorization.

99902039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39366, while the sum is 41.

The square root of 99902039 is about 9995.1007498674. The cubic root of 99902039 is about 464.0072689483.

The spelling of 99902039 in words is "ninety-nine million, nine hundred two thousand, thirty-nine".