672605 has 16 divisors (see below), whose sum is σ = 879984. Its totient is φ = 491520.

The previous prime is 672593. The next prime is 672629. The reversal of 672605 is 506276.

672605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 75076 + 597529 = 274^2 + 773^2 .

It is not a de Polignac number, because 672605 - 2⁸ = 672349 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3389 + ... + 3581.

It is an arithmetic number, because the mean of its divisors is an integer number (54999).

2⁶⁷²⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

672605 is a deficient number, since it is larger than the sum of its proper divisors (207379).

672605 is a wasteful number, since it uses less digits than its factorization.

672605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256.

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

The square root of 672605 is about 820.1249904740. The cubic root of 672605 is about 87.6166607177.

The spelling of 672605 in words is "six hundred seventy-two thousand, six hundred five".