672406 has 8 divisors (see below), whose sum is σ = 1152720. Its totient is φ = 288168.

The previous prime is 672379. The next prime is 672439. The reversal of 672406 is 604276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

672406 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24001 + ... + 24028.

It is an arithmetic number, because the mean of its divisors is an integer number (144090).

2⁶⁷²⁴⁰⁶ is an apocalyptic number.

672406 is a deficient number, since it is larger than the sum of its proper divisors (480314).

672406 is a wasteful number, since it uses less digits than its factorization.

672406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48038.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 672406 is about 820.0036585284. The cubic root of 672406 is about 87.6080189764.

The spelling of 672406 in words is "six hundred seventy-two thousand, four hundred six".