2081827 has 4 divisors (see below), whose sum is σ = 2271096. Its totient is φ = 1892560.

The previous prime is 2081813. The next prime is 2081831. The reversal of 2081827 is 7281802.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2081827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2081795 and 2081804.

It is not an unprimeable number, because it can be changed into a prime (2081897) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 94618 + ... + 94639.

It is an arithmetic number, because the mean of its divisors is an integer number (567774).

2^2081827 is an apocalyptic number.

2081827 is a deficient number, since it is larger than the sum of its proper divisors (189269).

2081827 is a wasteful number, since it uses less digits than its factorization.

2081827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189268.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 2081827 is about 1442.8537694444. The cubic root of 2081827 is about 127.6874495120.

The spelling of 2081827 in words is "two million, eighty-one thousand, eight hundred twenty-seven".