724365 has 12 divisors (see below), whose sum is σ = 1255644. Its totient is φ = 386304.

The previous prime is 724331. The next prime is 724393. The reversal of 724365 is 563427.

It is a happy number.

724365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 338724 + 385641 = 582^2 + 621^2 .

It is not a de Polignac number, because 724365 - 2¹¹ = 722317 is a prime.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 724365.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8004 + ... + 8093.

It is an arithmetic number, because the mean of its divisors is an integer number (104637).

2⁷²⁴³⁶⁵ is an apocalyptic number.

It is an amenable number.

724365 is a deficient number, since it is larger than the sum of its proper divisors (531279).

724365 is a wasteful number, since it uses less digits than its factorization.

724365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16108 (or 16105 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 724365 is about 851.0963517722. The cubic root of 724365 is about 89.8088535805.

It can be divided in two parts, 724 and 365, that added together give a square (1089 = 33²).

The spelling of 724365 in words is "seven hundred twenty-four thousand, three hundred sixty-five".