99517207 has 2 divisors, whose sum is σ = 99517208. Its totient is φ = 99517206.

The previous prime is 99517153. The next prime is 99517213. The reversal of 99517207 is 70271599.

It is a strong prime.

It is an emirp because it is prime and its reverse (70271599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99517207 - 2¹⁵ = 99484439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99517207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99517237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49758603 + 49758604.

It is an arithmetic number, because the mean of its divisors is an integer number (49758604).

Almost surely, 2^99517207 is an apocalyptic number.

99517207 is a deficient number, since it is larger than the sum of its proper divisors (1).

99517207 is an equidigital number, since it uses as much as digits as its factorization.

99517207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 40.

The square root of 99517207 is about 9975.8311433183. The cubic root of 99517207 is about 463.4107024788.

The spelling of 99517207 in words is "ninety-nine million, five hundred seventeen thousand, two hundred seven".