172589 has 2 divisors, whose sum is σ = 172590. Its totient is φ = 172588.

The previous prime is 172583. The next prime is 172597. The reversal of 172589 is 985271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168100 + 4489 = 410^2 + 67^2 .

It is a cyclic number.

It is not a de Polignac number, because 172589 - 2⁴ = 172573 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86294 + 86295.

It is an arithmetic number, because the mean of its divisors is an integer number (86295).

2¹⁷²⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

172589 is a deficient number, since it is larger than the sum of its proper divisors (1).

172589 is an equidigital number, since it uses as much as digits as its factorization.

172589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 32.

The square root of 172589 is about 415.4383227388. The cubic root of 172589 is about 55.6763860464.

The spelling of 172589 in words is "one hundred seventy-two thousand, five hundred eighty-nine".