170939099 has 2 divisors, whose sum is σ = 170939100. Its totient is φ = 170939098.

The previous prime is 170939077. The next prime is 170939101. The reversal of 170939099 is 990939071.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 170939099 - 2⁸ = 170938843 is a prime.

Together with 170939101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (170939039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85469549 + 85469550.

It is an arithmetic number, because the mean of its divisors is an integer number (85469550).

Almost surely, 2^170939099 is an apocalyptic number.

170939099 is a deficient number, since it is larger than the sum of its proper divisors (1).

170939099 is an equidigital number, since it uses as much as digits as its factorization.

170939099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 137781, while the sum is 47.

The square root of 170939099 is about 13074.3680153191. The cubic root of 170939099 is about 554.9840094952.

The spelling of 170939099 in words is "one hundred seventy million, nine hundred thirty-nine thousand, ninety-nine".