408173 has 2 divisors, whose sum is σ = 408174. Its totient is φ = 408172.

The previous prime is 408169. The next prime is 408197. The reversal of 408173 is 371804.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316969 + 91204 = 563^2 + 302^2 .

It is a cyclic number.

It is not a de Polignac number, because 408173 - 2² = 408169 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204086 + 204087.

It is an arithmetic number, because the mean of its divisors is an integer number (204087).

2⁴⁰⁸¹⁷³ is an apocalyptic number.

It is an amenable number.

408173 is a deficient number, since it is larger than the sum of its proper divisors (1).

408173 is an equidigital number, since it uses as much as digits as its factorization.

408173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 408173 is about 638.8841835576. The cubic root of 408173 is about 74.1790768836.

Adding to 408173 its reverse (371804), we get a palindrome (779977).

The spelling of 408173 in words is "four hundred eight thousand, one hundred seventy-three".