2000881 has 4 divisors (see below), whose sum is σ = 2025072. Its totient is φ = 1976692.

The previous prime is 2000863. The next prime is 2000903. The reversal of 2000881 is 1880002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1880002 = 2 ⋅940001.

It is a cyclic number.

It is not a de Polignac number, because 2000881 - 2⁷ = 2000753 is a prime.

It is a super-2 number, since 2×2000881² = 8007049552322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000081) 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, 11971 + ... + 12136.

It is an arithmetic number, because the mean of its divisors is an integer number (506268).

2^2000881 is an apocalyptic number.

It is an amenable number.

2000881 is a deficient number, since it is larger than the sum of its proper divisors (24191).

2000881 is an equidigital number, since it uses as much as digits as its factorization.

2000881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24190.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 2000881 is about 1414.5250086160. The cubic root of 2000881 is about 126.0106021145.

Adding to 2000881 its reverse (1880002), we get a palindrome (3880883).

The spelling of 2000881 in words is "two million, eight hundred eighty-one", and thus it is an aban number.