2081847 has 8 divisors (see below), whose sum is σ = 2784640. Its totient is φ = 1383480.

The previous prime is 2081843. The next prime is 2081851. The reversal of 2081847 is 7481802.

It is an interprime number because it is at equal distance from previous prime (2081843) and next prime (2081851).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2081847 - 2² = 2081843 is a prime.

It is a Duffinian number.

2081847 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081843) 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 7 ways as a sum of consecutive naturals, for example, 222 + ... + 2052.

It is an arithmetic number, because the mean of its divisors is an integer number (348080).

2^2081847 is an apocalyptic number.

2081847 is a deficient number, since it is larger than the sum of its proper divisors (702793).

2081847 is a wasteful number, since it uses less digits than its factorization.

2081847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 2081847 is about 1442.8607001371. The cubic root of 2081847 is about 127.6878584062.

The spelling of 2081847 in words is "two million, eighty-one thousand, eight hundred forty-seven".