3881887 has 2 divisors, whose sum is σ = 3881888. Its totient is φ = 3881886.

The previous prime is 3881873. The next prime is 3881951. The reversal of 3881887 is 7881883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3881887 - 2¹¹ = 3879839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3881807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1940943 + 1940944.

It is an arithmetic number, because the mean of its divisors is an integer number (1940944).

Almost surely, 2^3881887 is an apocalyptic number.

3881887 is a deficient number, since it is larger than the sum of its proper divisors (1).

3881887 is an equidigital number, since it uses as much as digits as its factorization.

3881887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86016, while the sum is 43.

The square root of 3881887 is about 1970.2504916888. The cubic root of 3881887 is about 157.1620299708.

The spelling of 3881887 in words is "three million, eight hundred eighty-one thousand, eight hundred eighty-seven".