726285 has 16 divisors (see below), whose sum is σ = 1328256. Its totient is φ = 331968.

The previous prime is 726221. The next prime is 726287. The reversal of 726285 is 582627.

It is not a de Polignac number, because 726285 - 2⁶ = 726221 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726287) 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, 3354 + ... + 3563.

It is an arithmetic number, because the mean of its divisors is an integer number (83016).

2⁷²⁶²⁸⁵ is an apocalyptic number.

It is an amenable number.

726285 is a deficient number, since it is larger than the sum of its proper divisors (601971).

726285 is a wasteful number, since it uses less digits than its factorization.

726285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6932.

The product of its digits is 6720, while the sum is 30.

The square root of 726285 is about 852.2235622183. The cubic root of 726285 is about 89.8881326146. Note that the first 3 decimals are identical.

The spelling of 726285 in words is "seven hundred twenty-six thousand, two hundred eighty-five".