724316 has 12 divisors (see below), whose sum is σ = 1322832. Its totient is φ = 346368.

The previous prime is 724313. The next prime is 724331. The reversal of 724316 is 613427.

724316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 724291 and 724300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3845 + ... + 4028.

It is an arithmetic number, because the mean of its divisors is an integer number (110236).

2⁷²⁴³¹⁶ is an apocalyptic number.

It is an amenable number.

724316 is a deficient number, since it is larger than the sum of its proper divisors (598516).

724316 is a wasteful number, since it uses less digits than its factorization.

724316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7900 (or 7898 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 724316 is about 851.0675648854. The cubic root of 724316 is about 89.8068284813.

Subtracting from 724316 its reverse (613427), we obtain a square (110889 = 333²).

The spelling of 724316 in words is "seven hundred twenty-four thousand, three hundred sixteen".