726369 has 8 divisors (see below), whose sum is σ = 1106880. Its totient is φ = 415056.

The previous prime is 726367. The next prime is 726371. The reversal of 726369 is 963627.

It is an interprime number because it is at equal distance from previous prime (726367) and next prime (726371).

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

It is not a de Polignac number, because 726369 - 2¹ = 726367 is a prime.

It is a super-2 number, since 2×726369² = 1055223848322, which contains 22 as substring.

726369 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (726367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17274 + ... + 17315.

It is an arithmetic number, because the mean of its divisors is an integer number (138360).

2⁷²⁶³⁶⁹ is an apocalyptic number.

It is an amenable number.

726369 is a deficient number, since it is larger than the sum of its proper divisors (380511).

726369 is a wasteful number, since it uses less digits than its factorization.

726369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34599.

The product of its digits is 13608, while the sum is 33.

The square root of 726369 is about 852.2728436364. The cubic root of 726369 is about 89.8915978806.

It can be divided in two parts, 72 and 6369, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 726369 in words is "seven hundred twenty-six thousand, three hundred sixty-nine".