724712 has 16 divisors (see below), whose sum is σ = 1369860. Its totient is φ = 359424.

The previous prime is 724651. The next prime is 724721. The reversal of 724712 is 217427.

724712 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 682276 + 42436 = 826^2 + 206^2 .

It is an unprimeable number.

724712 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 968 + ... + 1544.

2⁷²⁴⁷¹² is an apocalyptic number.

It is an amenable number.

724712 is a deficient number, since it is larger than the sum of its proper divisors (645148).

724712 is a wasteful number, since it uses less digits than its factorization.

724712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740 (or 736 counting only the distinct ones).

The product of its digits is 784, while the sum is 23.

The square root of 724712 is about 851.3001820745. The cubic root of 724712 is about 89.8231919768.

The spelling of 724712 in words is "seven hundred twenty-four thousand, seven hundred twelve", and thus it is an iban number.