725673 has 16 divisors (see below), whose sum is σ = 1088640. Its totient is φ = 426624.

The previous prime is 725671. The next prime is 725687. The reversal of 725673 is 376527.

It is not a de Polignac number, because 725673 - 2¹ = 725671 is a prime.

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 725673.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493 + ... + 1301.

It is an arithmetic number, because the mean of its divisors is an integer number (68040).

2⁷²⁵⁶⁷³ is an apocalyptic number.

It is an amenable number.

725673 is a deficient number, since it is larger than the sum of its proper divisors (362967).

725673 is a wasteful number, since it uses less digits than its factorization.

725673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848.

The product of its digits is 8820, while the sum is 30.

The square root of 725673 is about 851.8644258331. The cubic root of 725673 is about 89.8628776086.

The spelling of 725673 in words is "seven hundred twenty-five thousand, six hundred seventy-three".