2011829 has 4 divisors (see below), whose sum is σ = 2060940. Its totient is φ = 1962720.

The previous prime is 2011811. The next prime is 2011843. The reversal of 2011829 is 9281102.

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 46225 + 1965604 = 215^2 + 1402^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011829 - 2⁸ = 2011573 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011129) 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, 24494 + ... + 24575.

It is an arithmetic number, because the mean of its divisors is an integer number (515235).

2^2011829 is an apocalyptic number.

It is an amenable number.

2011829 is a deficient number, since it is larger than the sum of its proper divisors (49111).

2011829 is an equidigital number, since it uses as much as digits as its factorization.

2011829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49110.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 2011829 is about 1418.3895797700. The cubic root of 2011829 is about 126.2400103196.

The spelling of 2011829 in words is "two million, eleven thousand, eight hundred twenty-nine".