2009833 has 6 divisors (see below), whose sum is σ = 2338026. Its totient is φ = 1722672.

The previous prime is 2009831. The next prime is 2009857. The reversal of 2009833 is 3389002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1882384 + 127449 = 1372^2 + 357^2 .

It is not a de Polignac number, because 2009833 - 2¹ = 2009831 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2009798 and 2009807.

It is not an unprimeable number, because it can be changed into a prime (2009831) 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 5 ways as a sum of consecutive naturals, for example, 20460 + ... + 20557.

It is an arithmetic number, because the mean of its divisors is an integer number (389671).

2^2009833 is an apocalyptic number.

It is an amenable number.

2009833 is a deficient number, since it is larger than the sum of its proper divisors (328193).

2009833 is an equidigital number, since it uses as much as digits as its factorization.

2009833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41031 (or 41024 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2009833 is about 1417.6857902935. The cubic root of 2009833 is about 126.1982475857.

The spelling of 2009833 in words is "two million, nine thousand, eight hundred thirty-three".