99501839 has 2 divisors, whose sum is σ = 99501840. Its totient is φ = 99501838.

The previous prime is 99501827. The next prime is 99501851. The reversal of 99501839 is 93810599.

It is a balanced prime because it is at equal distance from previous prime (99501827) and next prime (99501851).

It is an emirp because it is prime and its reverse (93810599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99501839 - 2⁴ = 99501823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99501839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99501869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49750919 + 49750920.

It is an arithmetic number, because the mean of its divisors is an integer number (49750920).

Almost surely, 2^99501839 is an apocalyptic number.

99501839 is a deficient number, since it is larger than the sum of its proper divisors (1).

99501839 is an equidigital number, since it uses as much as digits as its factorization.

99501839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 99501839 is about 9975.0608519447. The cubic root of 99501839 is about 463.3868470990.

The spelling of 99501839 in words is "ninety-nine million, five hundred one thousand, eight hundred thirty-nine".