662173 has 4 divisors (see below), whose sum is σ = 664000. Its totient is φ = 660348.

The previous prime is 662149. The next prime is 662177. The reversal of 662173 is 371266.

662173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 662173 - 2⁵ = 662141 is a prime.

It is a Duffinian number.

662173 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165 + ... + 1162.

It is an arithmetic number, because the mean of its divisors is an integer number (166000).

2⁶⁶²¹⁷³ is an apocalyptic number.

It is an amenable number.

662173 is a deficient number, since it is larger than the sum of its proper divisors (1827).

662173 is a wasteful number, since it uses less digits than its factorization.

662173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826.

The product of its digits is 1512, while the sum is 25.

The square root of 662173 is about 813.7401305085. The cubic root of 662173 is about 87.1613248378.

The spelling of 662173 in words is "six hundred sixty-two thousand, one hundred seventy-three".