99713239 has 2 divisors, whose sum is σ = 99713240. Its totient is φ = 99713238.

The previous prime is 99713233. The next prime is 99713249. The reversal of 99713239 is 93231799.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99713239 - 2³ = 99713231 is a prime.

It is a super-2 number, since 2×99713239² = 19885460063742242, which contains 22 as substring.

It is equal to p_5745886 and since 99713239 and 5745886 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 99713195 and 99713204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99713231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49856619 + 49856620.

It is an arithmetic number, because the mean of its divisors is an integer number (49856620).

Almost surely, 2^99713239 is an apocalyptic number.

99713239 is a deficient number, since it is larger than the sum of its proper divisors (1).

99713239 is an equidigital number, since it uses as much as digits as its factorization.

99713239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 91854, while the sum is 43.

The square root of 99713239 is about 9985.6516562516. The cubic root of 99713239 is about 463.7147830364.

The spelling of 99713239 in words is "ninety-nine million, seven hundred thirteen thousand, two hundred thirty-nine".