672437 has 4 divisors (see below), whose sum is σ = 677100. Its totient is φ = 667776.

The previous prime is 672379. The next prime is 672439. The reversal of 672437 is 734276.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22801 + 649636 = 151^2 + 806^2 .

It is a cyclic number.

It is not a de Polignac number, because 672437 - 2⁸ = 672181 is a prime.

It is a Duffinian number.

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 672437.

It is not an unprimeable number, because it can be changed into a prime (672439) 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, 2108 + ... + 2405.

It is an arithmetic number, because the mean of its divisors is an integer number (169275).

2⁶⁷²⁴³⁷ is an apocalyptic number.

It is an amenable number.

672437 is a deficient number, since it is larger than the sum of its proper divisors (4663).

672437 is a wasteful number, since it uses less digits than its factorization.

672437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4662.

The product of its digits is 7056, while the sum is 29.

The square root of 672437 is about 820.0225606653. The cubic root of 672437 is about 87.6093652894.

The spelling of 672437 in words is "six hundred seventy-two thousand, four hundred thirty-seven".