2030891 has 8 divisors (see below), whose sum is σ = 2163600. Its totient is φ = 1900800.

The previous prime is 2030881. The next prime is 2030909. The reversal of 2030891 is 1980302.

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

It is a cyclic number.

It is not a de Polignac number, because 2030891 - 2¹⁸ = 1768747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2030881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1091 + ... + 2291.

It is an arithmetic number, because the mean of its divisors is an integer number (270450).

2^2030891 is an apocalyptic number.

2030891 is a deficient number, since it is larger than the sum of its proper divisors (132709).

2030891 is a wasteful number, since it uses less digits than its factorization.

2030891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2030891 is about 1425.0933302770. The cubic root of 2030891 is about 126.6374640282.

The spelling of 2030891 in words is "two million, thirty thousand, eight hundred ninety-one".