1728573 has 24 divisors (see below), whose sum is σ = 2927520. Its totient is φ = 897120.

The previous prime is 1728547. The next prime is 1728581. The reversal of 1728573 is 3758271.

It is not a de Polignac number, because 1728573 - 2⁵ = 1728541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

1728573 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1728583) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1083 + ... + 2151.

It is an arithmetic number, because the mean of its divisors is an integer number (121980).

2^1728573 is an apocalyptic number.

It is an amenable number.

1728573 is a deficient number, since it is larger than the sum of its proper divisors (1198947).

1728573 is a wasteful number, since it uses less digits than its factorization.

1728573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097 (or 1090 counting only the distinct ones).

The product of its digits is 11760, while the sum is 33.

The square root of 1728573 is about 1314.7520678820. The cubic root of 1728573 is about 120.0132624231.

The spelling of 1728573 in words is "one million, seven hundred twenty-eight thousand, five hundred seventy-three".