724559 has 8 divisors (see below), whose sum is σ = 796800. Its totient is φ = 653400.

The previous prime is 724553. The next prime is 724567. The reversal of 724559 is 955427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 724559 - 2⁸ = 724303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2024 + ... + 2354.

It is an arithmetic number, because the mean of its divisors is an integer number (99600).

2⁷²⁴⁵⁵⁹ is an apocalyptic number.

724559 is a deficient number, since it is larger than the sum of its proper divisors (72241).

724559 is a wasteful number, since it uses less digits than its factorization.

724559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541.

The product of its digits is 12600, while the sum is 32.

The square root of 724559 is about 851.2103147871. The cubic root of 724559 is about 89.8168704240.

The spelling of 724559 in words is "seven hundred twenty-four thousand, five hundred fifty-nine".