726269 has 4 divisors (see below), whose sum is σ = 728700. Its totient is φ = 723840.

The previous prime is 726221. The next prime is 726287. The reversal of 726269 is 962627.

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 407044 + 319225 = 638^2 + 565^2 .

It is a cyclic number.

It is not a de Polignac number, because 726269 - 2⁸ = 726013 is a prime.

It is a super-2 number, since 2×726269² = 1054933320722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726289) 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, 692 + ... + 1389.

It is an arithmetic number, because the mean of its divisors is an integer number (182175).

2⁷²⁶²⁶⁹ is an apocalyptic number.

It is an amenable number.

726269 is a deficient number, since it is larger than the sum of its proper divisors (2431).

726269 is a wasteful number, since it uses less digits than its factorization.

726269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2430.

The product of its digits is 9072, while the sum is 32.

The square root of 726269 is about 852.2141749584. The cubic root of 726269 is about 89.8874725337.

The spelling of 726269 in words is "seven hundred twenty-six thousand, two hundred sixty-nine".