724129 has 16 divisors (see below), whose sum is σ = 884736. Its totient is φ = 579600.

The previous prime is 724123. The next prime is 724153. The reversal of 724129 is 921427.

It is not a de Polignac number, because 724129 - 2³ = 724121 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 (724121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10164 + ... + 10234.

It is an arithmetic number, because the mean of its divisors is an integer number (55296).

2⁷²⁴¹²⁹ is an apocalyptic number.

It is an amenable number.

724129 is a deficient number, since it is larger than the sum of its proper divisors (160607).

724129 is a wasteful number, since it uses less digits than its factorization.

724129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156.

The product of its digits is 1008, while the sum is 25.

The square root of 724129 is about 850.9576957758. The cubic root of 724129 is about 89.7990992018.

The spelling of 724129 in words is "seven hundred twenty-four thousand, one hundred twenty-nine".