2071881 has 12 divisors (see below), whose sum is σ = 3420352. Its totient is φ = 1183896.

The previous prime is 2071879. The next prime is 2071897. The reversal of 2071881 is 1881702.

It is not a de Polignac number, because 2071881 - 2¹ = 2071879 is a prime.

It is a super-2 number, since 2×2071881² = 8585381756322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2071801) 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 11 ways as a sum of consecutive naturals, for example, 16381 + ... + 16506.

2^2071881 is an apocalyptic number.

2071881 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2071881 is a deficient number, since it is larger than the sum of its proper divisors (1348471).

2071881 is a wasteful number, since it uses less digits than its factorization.

2071881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32900 (or 32897 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 2071881 is about 1439.4030012474. The cubic root of 2071881 is about 127.4837810973.

The spelling of 2071881 in words is "two million, seventy-one thousand, eight hundred eighty-one".