99799907 has 2 divisors, whose sum is σ = 99799908. Its totient is φ = 99799906.

The previous prime is 99799891. The next prime is 99799919. The reversal of 99799907 is 70999799.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99799907 - 2⁴ = 99799891 is a prime.

It is not a weakly prime, because it can be changed into another prime (99799927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49899953 + 49899954.

It is an arithmetic number, because the mean of its divisors is an integer number (49899954).

Almost surely, 2^99799907 is an apocalyptic number.

99799907 is a deficient number, since it is larger than the sum of its proper divisors (1).

99799907 is an equidigital number, since it uses as much as digits as its factorization.

99799907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2893401, while the sum is 59.

The square root of 99799907 is about 9989.9903403357. The cubic root of 99799907 is about 463.8490935019.

The spelling of 99799907 in words is "ninety-nine million, seven hundred ninety-nine thousand, nine hundred seven".