99590839 has 2 divisors, whose sum is σ = 99590840. Its totient is φ = 99590838.

The previous prime is 99590833. The next prime is 99590849. The reversal of 99590839 is 93809599.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99590839 - 2⁵ = 99590807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99590833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49795419 + 49795420.

It is an arithmetic number, because the mean of its divisors is an integer number (49795420).

Almost surely, 2^99590839 is an apocalyptic number.

99590839 is a deficient number, since it is larger than the sum of its proper divisors (1).

99590839 is an equidigital number, since it uses as much as digits as its factorization.

99590839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 787320, while the sum is 52.

The square root of 99590839 is about 9979.5209804880. The cubic root of 99590839 is about 463.5249656159.

The spelling of 99590839 in words is "ninety-nine million, five hundred ninety thousand, eight hundred thirty-nine".