723726 has 24 divisors (see below), whose sum is σ = 1619904. Its totient is φ = 233280.

The previous prime is 723721. The next prime is 723727. The reversal of 723726 is 627327.

It is a self number, because there is not a number n which added to its sum of digits gives 723726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91 + ... + 1206.

It is an arithmetic number, because the mean of its divisors is an integer number (67496).

2⁷²³⁷²⁶ is an apocalyptic number.

723726 is an abundant number, since it is smaller than the sum of its proper divisors (896178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

723726 is a wasteful number, since it uses less digits than its factorization.

723726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336 (or 1333 counting only the distinct ones).

The product of its digits is 3528, while the sum is 27.

The square root of 723726 is about 850.7208707914. The cubic root of 723726 is about 89.7824374594.

The spelling of 723726 in words is "seven hundred twenty-three thousand, seven hundred twenty-six".