724716 has 36 divisors (see below), whose sum is σ = 1880424. Its totient is φ = 235200.

The previous prime is 724651. The next prime is 724721. The reversal of 724716 is 617427.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 724716.

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 724716.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1231 + ... + 1721.

It is an arithmetic number, because the mean of its divisors is an integer number (52234).

2⁷²⁴⁷¹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 724716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (940212).

724716 is an abundant number, since it is smaller than the sum of its proper divisors (1155708).

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

724716 is a wasteful number, since it uses less digits than its factorization.

724716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 537 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 724716 is about 851.3025314188. The cubic root of 724716 is about 89.8233572342.

The spelling of 724716 in words is "seven hundred twenty-four thousand, seven hundred sixteen".