724929 has 4 divisors (see below), whose sum is σ = 966576. Its totient is φ = 483284.

The previous prime is 724903. The next prime is 724939. The reversal of 724929 is 929427.

724929 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 724929 - 2¹¹ = 722881 is a prime.

It is a D-number.

724929 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 724929.

It is not an unprimeable number, because it can be changed into a prime (724939) 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, 120819 + ... + 120824.

It is an arithmetic number, because the mean of its divisors is an integer number (241644).

2⁷²⁴⁹²⁹ is an apocalyptic number.

It is an amenable number.

724929 is a deficient number, since it is larger than the sum of its proper divisors (241647).

724929 is a wasteful number, since it uses less digits than its factorization.

724929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241646.

The product of its digits is 9072, while the sum is 33.

The square root of 724929 is about 851.4276246399. The cubic root of 724929 is about 89.8321563137.

It can be divided in two parts, 724 and 929, that added together give a triangular number (1653 = T₅₇).

The spelling of 724929 in words is "seven hundred twenty-four thousand, nine hundred twenty-nine".