1724993 has 4 divisors (see below), whose sum is σ = 1767108. Its totient is φ = 1682880.

The previous prime is 1724981. The next prime is 1724999. The reversal of 1724993 is 3994271.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66049 + 1658944 = 257^2 + 1288^2 .

It is a cyclic number.

It is not a de Polignac number, because 1724993 - 2⁶ = 1724929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1724999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20996 + ... + 21077.

It is an arithmetic number, because the mean of its divisors is an integer number (441777).

2^1724993 is an apocalyptic number.

It is an amenable number.

1724993 is a deficient number, since it is larger than the sum of its proper divisors (42115).

1724993 is an equidigital number, since it uses as much as digits as its factorization.

1724993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42114.

The product of its digits is 13608, while the sum is 35.

The square root of 1724993 is about 1313.3898887992. The cubic root of 1724993 is about 119.9303531039.

The spelling of 1724993 in words is "one million, seven hundred twenty-four thousand, nine hundred ninety-three".