2083891 has 4 divisors (see below), whose sum is σ = 2087784. Its totient is φ = 2080000.

The previous prime is 2083889. The next prime is 2083897. The reversal of 2083891 is 1983802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1983802 = 2 ⋅991901.

It is a cyclic number.

It is not a de Polignac number, because 2083891 - 2¹ = 2083889 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (2083897) 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, 985 + ... + 2266.

It is an arithmetic number, because the mean of its divisors is an integer number (521946).

2^2083891 is an apocalyptic number.

2083891 is a deficient number, since it is larger than the sum of its proper divisors (3893).

2083891 is an equidigital number, since it uses as much as digits as its factorization.

2083891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 2083891 is about 1443.5688414482. The cubic root of 2083891 is about 127.7296335883.

The spelling of 2083891 in words is "two million, eighty-three thousand, eight hundred ninety-one".