3881873 has 2 divisors, whose sum is σ = 3881874. Its totient is φ = 3881872.

The previous prime is 3881869. The next prime is 3881887. The reversal of 3881873 is 3781883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2458624 + 1423249 = 1568^2 + 1193^2 .

It is a cyclic number.

It is not a de Polignac number, because 3881873 - 2² = 3881869 is a prime.

It is not a weakly prime, because it can be changed into another prime (3881803) 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 as a sum of consecutive naturals, namely, 1940936 + 1940937.

It is an arithmetic number, because the mean of its divisors is an integer number (1940937).

Almost surely, 2^3881873 is an apocalyptic number.

It is an amenable number.

3881873 is a deficient number, since it is larger than the sum of its proper divisors (1).

3881873 is an equidigital number, since it uses as much as digits as its factorization.

3881873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 38.

The square root of 3881873 is about 1970.2469388379. The cubic root of 3881873 is about 157.1618410359.

The spelling of 3881873 in words is "three million, eight hundred eighty-one thousand, eight hundred seventy-three".