672506 has 4 divisors (see below), whose sum is σ = 1008762. Its totient is φ = 336252.

The previous prime is 672499. The next prime is 672521. The reversal of 672506 is 605276.

672506 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.

It can be written as a sum of positive squares in only one way, i.e., 664225 + 8281 = 815^2 + 91^2 .

It is a Curzon number.

It is a plaindrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168125 + ... + 168128.

2⁶⁷²⁵⁰⁶ is an apocalyptic number.

672506 is a deficient number, since it is larger than the sum of its proper divisors (336256).

672506 is a wasteful number, since it uses less digits than its factorization.

672506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336255.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 672506 is about 820.0646315992. The cubic root of 672506 is about 87.6123617731.

The spelling of 672506 in words is "six hundred seventy-two thousand, five hundred six".