3271987 has 4 divisors (see below), whose sum is σ = 3297096. Its totient is φ = 3246880.

The previous prime is 3271981. The next prime is 3271991. The reversal of 3271987 is 7891723.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3271987 - 2¹⁵ = 3239219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3271981) 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, 12358 + ... + 12619.

It is an arithmetic number, because the mean of its divisors is an integer number (824274).

Almost surely, 2^3271987 is an apocalyptic number.

3271987 is a deficient number, since it is larger than the sum of its proper divisors (25109).

3271987 is a wasteful number, since it uses less digits than its factorization.

3271987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25108.

The product of its digits is 21168, while the sum is 37.

The square root of 3271987 is about 1808.8634553222. The cubic root of 3271987 is about 148.4580857950.

The spelling of 3271987 in words is "three million, two hundred seventy-one thousand, nine hundred eighty-seven".