726755 has 8 divisors (see below), whose sum is σ = 877824. Its totient is φ = 577600.

The previous prime is 726751. The next prime is 726779. The reversal of 726755 is 557627.

It is a happy number.

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

It is not a de Polignac number, because 726755 - 2² = 726751 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 726755.

It is not an unprimeable number, because it can be changed into a prime (726751) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 575 + ... + 1335.

It is an arithmetic number, because the mean of its divisors is an integer number (109728).

2⁷²⁶⁷⁵⁵ is an apocalyptic number.

726755 is a deficient number, since it is larger than the sum of its proper divisors (151069).

726755 is a wasteful number, since it uses less digits than its factorization.

726755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957.

The product of its digits is 14700, while the sum is 32.

The square root of 726755 is about 852.4992668619. The cubic root of 726755 is about 89.9075181692.

It can be divided in two parts, 7 and 26755, that added together give a palindrome (26762).

The spelling of 726755 in words is "seven hundred twenty-six thousand, seven hundred fifty-five".