1725349 has 4 divisors (see below), whose sum is σ = 1728000. Its totient is φ = 1722700.

The previous prime is 1725343. The next prime is 1725359. The reversal of 1725349 is 9435271.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1725349 - 2⁷ = 1725221 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

1725349 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1725349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1725343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402 + ... + 1900.

It is an arithmetic number, because the mean of its divisors is an integer number (432000).

2^1725349 is an apocalyptic number.

It is an amenable number.

1725349 is a deficient number, since it is larger than the sum of its proper divisors (2651).

1725349 is a wasteful number, since it uses less digits than its factorization.

1725349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650.

The product of its digits is 7560, while the sum is 31.

The square root of 1725349 is about 1313.5254089663. The cubic root of 1725349 is about 119.9386028512.

The spelling of 1725349 in words is "one million, seven hundred twenty-five thousand, three hundred forty-nine".