3218987 has 2 divisors, whose sum is σ = 3218988. Its totient is φ = 3218986.

The previous prime is 3218953. The next prime is 3218993. The reversal of 3218987 is 7898123.

3218987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (7898123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3218987 - 2¹² = 3214891 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 3218987.

It is not a weakly prime, because it can be changed into another prime (3218587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1609493 + 1609494.

It is an arithmetic number, because the mean of its divisors is an integer number (1609494).

Almost surely, 2^3218987 is an apocalyptic number.

3218987 is a deficient number, since it is larger than the sum of its proper divisors (1).

3218987 is an equidigital number, since it uses as much as digits as its factorization.

3218987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 38.

The square root of 3218987 is about 1794.1535608749. The cubic root of 3218987 is about 147.6521383409.

The spelling of 3218987 in words is "three million, two hundred eighteen thousand, nine hundred eighty-seven".