173429 has 2 divisors, whose sum is σ = 173430. Its totient is φ = 173428.

The previous prime is 173359. The next prime is 173431. The reversal of 173429 is 924371.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168100 + 5329 = 410^2 + 73^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-173429 is a prime.

Together with 173431, 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 = 173398 and 173407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86714 + 86715.

It is an arithmetic number, because the mean of its divisors is an integer number (86715).

2¹⁷³⁴²⁹ is an apocalyptic number.

It is an amenable number.

173429 is a deficient number, since it is larger than the sum of its proper divisors (1).

173429 is an equidigital number, since it uses as much as digits as its factorization.

173429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 26.

The square root of 173429 is about 416.4480759951. The cubic root of 173429 is about 55.7665665607.

The spelling of 173429 in words is "one hundred seventy-three thousand, four hundred twenty-nine".