724533 has 4 divisors (see below), whose sum is σ = 966048. Its totient is φ = 483020.

The previous prime is 724531. The next prime is 724547. The reversal of 724533 is 335427.

724533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 724533 - 2¹ = 724531 is a prime.

It is a D-number.

It is a Curzon number.

724533 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724531) 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, 120753 + ... + 120758.

It is an arithmetic number, because the mean of its divisors is an integer number (241512).

2⁷²⁴⁵³³ is an apocalyptic number.

It is an amenable number.

724533 is a deficient number, since it is larger than the sum of its proper divisors (241515).

724533 is a wasteful number, since it uses less digits than its factorization.

724533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241514.

The product of its digits is 2520, while the sum is 24.

The square root of 724533 is about 851.1950422788. The cubic root of 724533 is about 89.8157960847.

The spelling of 724533 in words is "seven hundred twenty-four thousand, five hundred thirty-three".