2076891 has 4 divisors (see below), whose sum is σ = 2769192. Its totient is φ = 1384592.

The previous prime is 2076889. The next prime is 2076901. The reversal of 2076891 is 1986702.

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

It is a cyclic number.

It is not a de Polignac number, because 2076891 - 2¹ = 2076889 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2076881) 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, 346146 + ... + 346151.

It is an arithmetic number, because the mean of its divisors is an integer number (692298).

2^2076891 is an apocalyptic number.

2076891 is a deficient number, since it is larger than the sum of its proper divisors (692301).

2076891 is an equidigital number, since it uses as much as digits as its factorization.

2076891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692300.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 2076891 is about 1441.1422552961. The cubic root of 2076891 is about 127.5864542442.

It can be divided in two parts, 207689 and 1, that added together give a triangular number (207690 = T₆₄₄).

The spelling of 2076891 in words is "two million, seventy-six thousand, eight hundred ninety-one".