170992117 has 2 divisors, whose sum is σ = 170992118. Its totient is φ = 170992116.

The previous prime is 170992109. The next prime is 170992121. The reversal of 170992117 is 711299071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170276401 + 715716 = 13049^2 + 846^2 .

It is a cyclic number.

It is not a de Polignac number, because 170992117 - 2³ = 170992109 is a prime.

It is a super-2 number, since 2×170992117² = 58476608152283378, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170992127) 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, 85496058 + 85496059.

It is an arithmetic number, because the mean of its divisors is an integer number (85496059).

Almost surely, 2^170992117 is an apocalyptic number.

It is an amenable number.

170992117 is a deficient number, since it is larger than the sum of its proper divisors (1).

170992117 is an equidigital number, since it uses as much as digits as its factorization.

170992117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938, while the sum is 37.

The square root of 170992117 is about 13076.3954131098. The cubic root of 170992117 is about 555.0413810013.

The spelling of 170992117 in words is "one hundred seventy million, nine hundred ninety-two thousand, one hundred seventeen".