673181 has 4 divisors (see below), whose sum is σ = 687552. Its totient is φ = 658812.

The previous prime is 673157. The next prime is 673193. The reversal of 673181 is 181376.

673181 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 673181 - 2⁶ = 673117 is a prime.

It is a super-2 number, since 2×673181² = 906345317522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 673181.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 673181.

It is not an unprimeable number, because it can be changed into a prime (673111) 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, 7115 + ... + 7208.

It is an arithmetic number, because the mean of its divisors is an integer number (171888).

2⁶⁷³¹⁸¹ is an apocalyptic number.

It is an amenable number.

673181 is a deficient number, since it is larger than the sum of its proper divisors (14371).

673181 is a wasteful number, since it uses less digits than its factorization.

673181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14370.

The product of its digits is 1008, while the sum is 26.

The square root of 673181 is about 820.4760813089. The cubic root of 673181 is about 87.6416643960.

The spelling of 673181 in words is "six hundred seventy-three thousand, one hundred eighty-one".