439725 has 48 divisors (see below), whose sum is σ = 874944. Its totient is φ = 192000.

The previous prime is 439723. The next prime is 439729. The reversal of 439725 is 527934.

It is not a de Polignac number, because 439725 - 2¹ = 439723 is a prime.

439725 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 439692 and 439701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10705 + ... + 10745.

It is an arithmetic number, because the mean of its divisors is an integer number (18228).

2⁴³⁹⁷²⁵ is an apocalyptic number.

It is an amenable number.

439725 is a deficient number, since it is larger than the sum of its proper divisors (435219).

439725 is a wasteful number, since it uses less digits than its factorization.

439725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 73 counting only the distinct ones).

The product of its digits is 7560, while the sum is 30.

The square root of 439725 is about 663.1176366226. The cubic root of 439725 is about 76.0432002777.

Subtracting 439725 from its reverse (527934), we obtain a square (88209 = 297²).

The spelling of 439725 in words is "four hundred thirty-nine thousand, seven hundred twenty-five".