2005826 has 4 divisors (see below), whose sum is σ = 3008742. Its totient is φ = 1002912.

The previous prime is 2005799. The next prime is 2005831. The reversal of 2005826 is 6285002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1825201 + 180625 = 1351^2 + 425^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501455 + ... + 501458.

2^2005826 is an apocalyptic number.

2005826 is a deficient number, since it is larger than the sum of its proper divisors (1002916).

2005826 is a wasteful number, since it uses less digits than its factorization.

2005826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002915.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2005826 is about 1416.2718665567. The cubic root of 2005826 is about 126.1143247248.

The spelling of 2005826 in words is "two million, five thousand, eight hundred twenty-six".