170084729 has 2 divisors, whose sum is σ = 170084730. Its totient is φ = 170084728.

The previous prime is 170084699. The next prime is 170084731. The reversal of 170084729 is 927480071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150724729 + 19360000 = 12277^2 + 4400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-170084729 is a prime.

Together with 170084731, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 170084692 and 170084701.

It is not a weakly prime, because it can be changed into another prime (170084329) 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, 85042364 + 85042365.

It is an arithmetic number, because the mean of its divisors is an integer number (85042365).

Almost surely, 2^170084729 is an apocalyptic number.

It is an amenable number.

170084729 is a deficient number, since it is larger than the sum of its proper divisors (1).

170084729 is an equidigital number, since it uses as much as digits as its factorization.

170084729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 170084729 is about 13041.6536144770. The cubic root of 170084729 is about 554.0578436651.

The spelling of 170084729 in words is "one hundred seventy million, eighty-four thousand, seven hundred twenty-nine".