1724089 has 8 divisors (see below), whose sum is σ = 1875528. Its totient is φ = 1578240.

The previous prime is 1724083. The next prime is 1724113. The reversal of 1724089 is 9804271.

It can be written as a sum of positive squares in 4 ways, for example, as 652864 + 1071225 = 808^2 + 1035^2 .

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 1724089 - 2⁷ = 1723961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1724089.

It is not an unprimeable number, because it can be changed into a prime (1724083) 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, 742 + ... + 1999.

It is an arithmetic number, because the mean of its divisors is an integer number (234441).

2^1724089 is an apocalyptic number.

It is an amenable number.

1724089 is a deficient number, since it is larger than the sum of its proper divisors (151439).

1724089 is a wasteful number, since it uses less digits than its factorization.

1724089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1724089 is about 1313.0456960822. The cubic root of 1724089 is about 119.9093992056.

The spelling of 1724089 in words is "one million, seven hundred twenty-four thousand, eighty-nine".