725429 has 4 divisors (see below), whose sum is σ = 732576. Its totient is φ = 718284.

The previous prime is 725423. The next prime is 725437. The reversal of 725429 is 924527.

725429 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 725429 - 2¹² = 721333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 725429.

It is not an unprimeable number, because it can be changed into a prime (725423) 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, 3419 + ... + 3624.

It is an arithmetic number, because the mean of its divisors is an integer number (183144).

2⁷²⁵⁴²⁹ is an apocalyptic number.

It is an amenable number.

725429 is a deficient number, since it is larger than the sum of its proper divisors (7147).

725429 is a wasteful number, since it uses less digits than its factorization.

725429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7146.

The product of its digits is 5040, while the sum is 29.

The square root of 725429 is about 851.7211985151. The cubic root of 725429 is about 89.8528046602.

The spelling of 725429 in words is "seven hundred twenty-five thousand, four hundred twenty-nine".