2075891 has 4 divisors (see below), whose sum is σ = 2109984. Its totient is φ = 2041800.

The previous prime is 2075869. The next prime is 2075893. The reversal of 2075891 is 1985702.

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-2075891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2075893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16955 + ... + 17076.

It is an arithmetic number, because the mean of its divisors is an integer number (527496).

2^2075891 is an apocalyptic number.

2075891 is a deficient number, since it is larger than the sum of its proper divisors (34093).

2075891 is an equidigital number, since it uses as much as digits as its factorization.

2075891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34092.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 2075891 is about 1440.7952665108. The cubic root of 2075891 is about 127.5659738022.

The spelling of 2075891 in words is "two million, seventy-five thousand, eight hundred ninety-one".