172373 has 2 divisors, whose sum is σ = 172374. Its totient is φ = 172372.

The previous prime is 172357. The next prime is 172399. The reversal of 172373 is 373271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165649 + 6724 = 407^2 + 82^2 .

It is a cyclic number.

It is not a de Polignac number, because 172373 - 2⁴ = 172357 is a prime.

It is a super-2 number, since 2×172373² = 59424902258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86186 + 86187.

It is an arithmetic number, because the mean of its divisors is an integer number (86187).

2¹⁷²³⁷³ is an apocalyptic number.

It is an amenable number.

172373 is a deficient number, since it is larger than the sum of its proper divisors (1).

172373 is an equidigital number, since it uses as much as digits as its factorization.

172373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 882, while the sum is 23.

The square root of 172373 is about 415.1782749615. The cubic root of 172373 is about 55.6531494943.

It can be divided in two parts, 172 and 373, that added together give a palindrome (545).

The spelling of 172373 in words is "one hundred seventy-two thousand, three hundred seventy-three", and thus it is an iban number.