724591 has 8 divisors (see below), whose sum is σ = 876960. Its totient is φ = 584448.

The previous prime is 724583. The next prime is 724597. The reversal of 724591 is 195427.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 724591 - 2³ = 724583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2926 + ... + 3163.

It is an arithmetic number, because the mean of its divisors is an integer number (109620).

2⁷²⁴⁵⁹¹ is an apocalyptic number.

724591 is a deficient number, since it is larger than the sum of its proper divisors (152369).

724591 is a wasteful number, since it uses less digits than its factorization.

724591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6113.

The product of its digits is 2520, while the sum is 28.

The square root of 724591 is about 851.2291113443. The cubic root of 724591 is about 89.8181926524.

The spelling of 724591 in words is "seven hundred twenty-four thousand, five hundred ninety-one".