724159 has 4 divisors (see below), whose sum is σ = 749160. Its totient is φ = 699160.

The previous prime is 724153. The next prime is 724187. The reversal of 724159 is 951427.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-724159 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 (724153) 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, 12457 + ... + 12514.

It is an arithmetic number, because the mean of its divisors is an integer number (187290).

2⁷²⁴¹⁵⁹ is an apocalyptic number.

724159 is a deficient number, since it is larger than the sum of its proper divisors (25001).

724159 is a wasteful number, since it uses less digits than its factorization.

724159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25000.

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

The square root of 724159 is about 850.9753227914. The cubic root of 724159 is about 89.8003392827.

The spelling of 724159 in words is "seven hundred twenty-four thousand, one hundred fifty-nine".