670173 has 24 divisors (see below), whose sum is σ = 1072512. Its totient is φ = 370944.

The previous prime is 670147. The next prime is 670177. The reversal of 670173 is 371076.

It is not a de Polignac number, because 670173 - 2⁹ = 669661 is a prime.

670173 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670177) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6861 + ... + 6957.

It is an arithmetic number, because the mean of its divisors is an integer number (44688).

2⁶⁷⁰¹⁷³ is an apocalyptic number.

It is an amenable number.

670173 is a deficient number, since it is larger than the sum of its proper divisors (402339).

670173 is a wasteful number, since it uses less digits than its factorization.

670173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 670173 is about 818.6409469358. The cubic root of 670173 is about 87.5109319675.

The spelling of 670173 in words is "six hundred seventy thousand, one hundred seventy-three".