725306 has 8 divisors (see below), whose sum is σ = 1145280. Its totient is φ = 343548.

The previous prime is 725303. The next prime is 725317. The reversal of 725306 is 603527.

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

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 725306.

It is not an unprimeable number, because it can be changed into a prime (725303) 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, 9506 + ... + 9581.

It is an arithmetic number, because the mean of its divisors is an integer number (143160).

2⁷²⁵³⁰⁶ is an apocalyptic number.

725306 is a deficient number, since it is larger than the sum of its proper divisors (419974).

725306 is a wasteful number, since it uses less digits than its factorization.

725306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19108.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 725306 is about 851.6489887272. The cubic root of 725306 is about 89.8477260471.

The spelling of 725306 in words is "seven hundred twenty-five thousand, three hundred six".