2173829 has 4 divisors (see below), whose sum is σ = 2484384. Its totient is φ = 1863276.

The previous prime is 2173819. The next prime is 2173877. The reversal of 2173829 is 9283712.

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 a cyclic number.

It is not a de Polignac number, because 2173829 - 2⁸ = 2173573 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2173795 and 2173804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173819) 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, 155267 + ... + 155280.

It is an arithmetic number, because the mean of its divisors is an integer number (621096).

2^2173829 is an apocalyptic number.

It is an amenable number.

2173829 is a deficient number, since it is larger than the sum of its proper divisors (310555).

2173829 is an equidigital number, since it uses as much as digits as its factorization.

2173829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310554.

The product of its digits is 6048, while the sum is 32.

The square root of 2173829 is about 1474.3910607434. The cubic root of 2173829 is about 129.5413621398.

The spelling of 2173829 in words is "two million, one hundred seventy-three thousand, eight hundred twenty-nine".