1728925 has 12 divisors (see below), whose sum is σ = 2339136. Its totient is φ = 1257200.

The previous prime is 1728911. The next prime is 1728949. The reversal of 1728925 is 5298271.

It is not a de Polignac number, because 1728925 - 2¹⁵ = 1696157 is a prime.

It is a Duffinian number.

1728925 is a lucky number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2869 + ... + 3418.

It is an arithmetic number, because the mean of its divisors is an integer number (194928).

2^1728925 is an apocalyptic number.

It is an amenable number.

1728925 is a deficient number, since it is larger than the sum of its proper divisors (610211).

1728925 is a wasteful number, since it uses less digits than its factorization.

1728925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6308 (or 6303 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 1728925 is about 1314.8859266111. The cubic root of 1728925 is about 120.0214082175.

The spelling of 1728925 in words is "one million, seven hundred twenty-eight thousand, nine hundred twenty-five".