731725 has 6 divisors (see below), whose sum is σ = 907370. Its totient is φ = 585360.

The previous prime is 731719. The next prime is 731729. The reversal of 731725 is 527137.

731725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 70756 + 660969 = 266^2 + 813^2 .

It is not a de Polignac number, because 731725 - 2⁷ = 731597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 29269 = 731725 / (7 + 3 + 1 + 7 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 731725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14610 + ... + 14659.

2⁷³¹⁷²⁵ is an apocalyptic number.

It is an amenable number.

731725 is a deficient number, since it is larger than the sum of its proper divisors (175645).

731725 is a wasteful number, since it uses less digits than its factorization.

731725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29279 (or 29274 counting only the distinct ones).

The product of its digits is 1470, while the sum is 25.

The square root of 731725 is about 855.4092587762. The cubic root of 731725 is about 90.1120004809.

The spelling of 731725 in words is "seven hundred thirty-one thousand, seven hundred twenty-five".