724393 has 2 divisors, whose sum is σ = 724394. Its totient is φ = 724392.

The previous prime is 724331. The next prime is 724403. The reversal of 724393 is 393427.

724393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 685584 + 38809 = 828^2 + 197^2 .

It is a cyclic number.

It is not a de Polignac number, because 724393 - 2¹⁷ = 593321 is a prime.

It is equal to p₅₈₃₆₆ and since 724393 and 58366 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (724303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362196 + 362197.

It is an arithmetic number, because the mean of its divisors is an integer number (362197).

2⁷²⁴³⁹³ is an apocalyptic number.

It is an amenable number.

724393 is a deficient number, since it is larger than the sum of its proper divisors (1).

724393 is an equidigital number, since it uses as much as digits as its factorization.

724393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 28.

The square root of 724393 is about 851.1128009847. The cubic root of 724393 is about 89.8100107391.

It can be divided in two parts, 72 and 4393, that added together give a triangular number (4465 = T₉₄).

The spelling of 724393 in words is "seven hundred twenty-four thousand, three hundred ninety-three".