99171707 has 2 divisors, whose sum is σ = 99171708. Its totient is φ = 99171706.

The previous prime is 99171701. The next prime is 99171713. The reversal of 99171707 is 70717199.

It is a balanced prime because it is at equal distance from previous prime (99171701) and next prime (99171713).

It is a cyclic number.

It is not a de Polignac number, because 99171707 - 2⁶ = 99171643 is a prime.

It is not a weakly prime, because it can be changed into another prime (99171701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49585853 + 49585854.

It is an arithmetic number, because the mean of its divisors is an integer number (49585854).

Almost surely, 2^99171707 is an apocalyptic number.

99171707 is a deficient number, since it is larger than the sum of its proper divisors (1).

99171707 is an equidigital number, since it uses as much as digits as its factorization.

99171707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27783, while the sum is 41.

The square root of 99171707 is about 9958.4992343224. The cubic root of 99171707 is about 462.8737968629.

The spelling of 99171707 in words is "ninety-nine million, one hundred seventy-one thousand, seven hundred seven".