387173 has 2 divisors, whose sum is σ = 387174. Its totient is φ = 387172.

The previous prime is 387169. The next prime is 387187. The reversal of 387173 is 371783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 386884 + 289 = 622^2 + 17^2 .

It is a cyclic number.

It is not a de Polignac number, because 387173 - 2² = 387169 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193586 + 193587.

It is an arithmetic number, because the mean of its divisors is an integer number (193587).

2³⁸⁷¹⁷³ is an apocalyptic number.

It is an amenable number.

387173 is a deficient number, since it is larger than the sum of its proper divisors (1).

387173 is an equidigital number, since it uses as much as digits as its factorization.

387173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 29.

The square root of 387173 is about 622.2322717442. The cubic root of 387173 is about 72.8844735528.

The spelling of 387173 in words is "three hundred eighty-seven thousand, one hundred seventy-three".