1828173 has 4 divisors (see below), whose sum is σ = 2437568. Its totient is φ = 1218780.

The previous prime is 1828153. The next prime is 1828193. The reversal of 1828173 is 3718281.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1828153) and next prime (1828193).

It is not a de Polignac number, because 1828173 - 2¹² = 1824077 is a prime.

It is a D-number.

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 1828173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304693 + ... + 304698.

It is an arithmetic number, because the mean of its divisors is an integer number (609392).

2^1828173 is an apocalyptic number.

It is an amenable number.

1828173 is a deficient number, since it is larger than the sum of its proper divisors (609395).

1828173 is an equidigital number, since it uses as much as digits as its factorization.

1828173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609394.

The product of its digits is 2688, while the sum is 30.

The square root of 1828173 is about 1352.0994785888. The cubic root of 1828173 is about 122.2754013150.

The spelling of 1828173 in words is "one million, eight hundred twenty-eight thousand, one hundred seventy-three".