726265 has 4 divisors (see below), whose sum is σ = 871524. Its totient is φ = 581008.

The previous prime is 726221. The next prime is 726287. The reversal of 726265 is 562627.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 246016 + 480249 = 496^2 + 693^2 .

It is a cyclic number.

It is not a de Polignac number, because 726265 - 2⁷ = 726137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72622 + ... + 72631.

It is an arithmetic number, because the mean of its divisors is an integer number (217881).

2⁷²⁶²⁶⁵ is an apocalyptic number.

It is an amenable number.

726265 is a deficient number, since it is larger than the sum of its proper divisors (145259).

726265 is a wasteful number, since it uses less digits than its factorization.

726265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145258.

The product of its digits is 5040, while the sum is 28.

The square root of 726265 is about 852.2118281273. The cubic root of 726265 is about 89.8873075119.

The spelling of 726265 in words is "seven hundred twenty-six thousand, two hundred sixty-five".