99717707 has 2 divisors, whose sum is σ = 99717708. Its totient is φ = 99717706.

The previous prime is 99717679. The next prime is 99717721. The reversal of 99717707 is 70771799.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99717707 - 2¹⁴ = 99701323 is a prime.

It is not a weakly prime, because it can be changed into another prime (99717797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49858853 + 49858854.

It is an arithmetic number, because the mean of its divisors is an integer number (49858854).

Almost surely, 2^99717707 is an apocalyptic number.

99717707 is a deficient number, since it is larger than the sum of its proper divisors (1).

99717707 is an equidigital number, since it uses as much as digits as its factorization.

99717707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194481, while the sum is 47.

The square root of 99717707 is about 9985.8753747481. The cubic root of 99717707 is about 463.7217090532.

The spelling of 99717707 in words is "ninety-nine million, seven hundred seventeen thousand, seven hundred seven".