389173 has 2 divisors, whose sum is σ = 389174. Its totient is φ = 389172.

The previous prime is 389171. The next prime is 389189. The reversal of 389173 is 371983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339889 + 49284 = 583^2 + 222^2 .

It is a cyclic number.

It is not a de Polignac number, because 389173 - 2¹ = 389171 is a prime.

Together with 389171, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194586 + 194587.

It is an arithmetic number, because the mean of its divisors is an integer number (194587).

2³⁸⁹¹⁷³ is an apocalyptic number.

It is an amenable number.

389173 is a deficient number, since it is larger than the sum of its proper divisors (1).

389173 is an equidigital number, since it uses as much as digits as its factorization.

389173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 31.

The square root of 389173 is about 623.8373185375. The cubic root of 389173 is about 73.0097566243.

The spelling of 389173 in words is "three hundred eighty-nine thousand, one hundred seventy-three".