99716501 has 2 divisors, whose sum is σ = 99716502. Its totient is φ = 99716500.

The previous prime is 99716489. The next prime is 99716521. The reversal of 99716501 is 10561799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89283601 + 10432900 = 9449^2 + 3230^2 .

It is an emirp because it is prime and its reverse (10561799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99716501 - 2⁶ = 99716437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99716521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49858250 + 49858251.

It is an arithmetic number, because the mean of its divisors is an integer number (49858251).

Almost surely, 2^99716501 is an apocalyptic number.

It is an amenable number.

99716501 is a deficient number, since it is larger than the sum of its proper divisors (1).

99716501 is an equidigital number, since it uses as much as digits as its factorization.

99716501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 99716501 is about 9985.8149892735. The cubic root of 99716501 is about 463.7198396071.

The spelling of 99716501 in words is "ninety-nine million, seven hundred sixteen thousand, five hundred one".