1728373 has 8 divisors (see below), whose sum is σ = 1926720. Its totient is φ = 1540800.

The previous prime is 1728361. The next prime is 1728403. The reversal of 1728373 is 3738271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1728373 - 2⁵ = 1728341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1728323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2353 + ... + 2998.

It is an arithmetic number, because the mean of its divisors is an integer number (240840).

2^1728373 is an apocalyptic number.

It is an amenable number.

1728373 is a deficient number, since it is larger than the sum of its proper divisors (198347).

1728373 is a wasteful number, since it uses less digits than its factorization.

1728373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5387.

The product of its digits is 7056, while the sum is 31.

The square root of 1728373 is about 1314.6760057140. The cubic root of 1728373 is about 120.0086336381.

The spelling of 1728373 in words is "one million, seven hundred twenty-eight thousand, three hundred seventy-three".