2067881 has 4 divisors (see below), whose sum is σ = 2075472. Its totient is φ = 2060292.

The previous prime is 2067853. The next prime is 2067883. The reversal of 2067881 is 1887602.

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: 1887602 = 2 ⋅943801.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2067881 is a prime.

It is a super-2 number, since 2×2067881² = 8552263660322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2067883) 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, 3371 + ... + 3936.

It is an arithmetic number, because the mean of its divisors is an integer number (518868).

2^2067881 is an apocalyptic number.

It is an amenable number.

2067881 is a deficient number, since it is larger than the sum of its proper divisors (7591).

2067881 is an equidigital number, since it uses as much as digits as its factorization.

2067881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7590.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 2067881 is about 1438.0128650329. The cubic root of 2067881 is about 127.4016876374.

The spelling of 2067881 in words is "two million, sixty-seven thousand, eight hundred eighty-one".