99716599 has 2 divisors, whose sum is σ = 99716600. Its totient is φ = 99716598.

The previous prime is 99716597. The next prime is 99716609. The reversal of 99716599 is 99561799.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99716599 - 2¹ = 99716597 is a prime.

It is a super-2 number, since 2×99716599² = 19886800232253602, which contains 22 as substring.

Together with 99716597, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99716597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49858299 + 49858300.

It is an arithmetic number, because the mean of its divisors is an integer number (49858300).

Almost surely, 2^99716599 is an apocalyptic number.

99716599 is a deficient number, since it is larger than the sum of its proper divisors (1).

99716599 is an equidigital number, since it uses as much as digits as its factorization.

99716599 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1377810, while the sum is 55.

The square root of 99716599 is about 9985.8198962329. The cubic root of 99716599 is about 463.7199915195.

The spelling of 99716599 in words is "ninety-nine million, seven hundred sixteen thousand, five hundred ninety-nine".