1730725 has 12 divisors (see below), whose sum is σ = 2169504. Its totient is φ = 1369520.

The previous prime is 1730723. The next prime is 1730741. The reversal of 1730725 is 5270371.

It is not a de Polignac number, because 1730725 - 2¹ = 1730723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1730725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1730723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2352 + ... + 2998.

It is an arithmetic number, because the mean of its divisors is an integer number (180792).

2^1730725 is an apocalyptic number.

It is an amenable number.

1730725 is a deficient number, since it is larger than the sum of its proper divisors (438779).

1730725 is a wasteful number, since it uses less digits than its factorization.

1730725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764 (or 759 counting only the distinct ones).

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

The square root of 1730725 is about 1315.5702185744. The cubic root of 1730725 is about 120.0630455750.

The spelling of 1730725 in words is "one million, seven hundred thirty thousand, seven hundred twenty-five".