3965887 has 2 divisors, whose sum is σ = 3965888. Its totient is φ = 3965886.

The previous prime is 3965881. The next prime is 3965903. The reversal of 3965887 is 7885693.

It is a weak prime.

It is an emirp because it is prime and its reverse (7885693) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3965887 - 2¹⁵ = 3933119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3965881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1982943 + 1982944.

It is an arithmetic number, because the mean of its divisors is an integer number (1982944).

Almost surely, 2^3965887 is an apocalyptic number.

3965887 is a deficient number, since it is larger than the sum of its proper divisors (1).

3965887 is an equidigital number, since it uses as much as digits as its factorization.

3965887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The square root of 3965887 is about 1991.4534892887. The cubic root of 3965887 is about 158.2875578352.

The spelling of 3965887 in words is "three million, nine hundred sixty-five thousand, eight hundred eighty-seven".