724043 has 4 divisors (see below), whose sum is σ = 749040. Its totient is φ = 699048.

The previous prime is 724021. The next prime is 724079. The reversal of 724043 is 340427.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340427 = 67 ⋅5081.

It is a cyclic number.

It is not a de Polignac number, because 724043 - 2¹² = 719947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (724093) 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, 12455 + ... + 12512.

It is an arithmetic number, because the mean of its divisors is an integer number (187260).

2⁷²⁴⁰⁴³ is an apocalyptic number.

724043 is a deficient number, since it is larger than the sum of its proper divisors (24997).

724043 is a wasteful number, since it uses less digits than its factorization.

724043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24996.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 724043 is about 850.9071629737. The cubic root of 724043 is about 89.7955441132.

The spelling of 724043 in words is "seven hundred twenty-four thousand, forty-three", and thus it is an iban number.