3216887 has 2 divisors, whose sum is σ = 3216888. Its totient is φ = 3216886.

The previous prime is 3216881. The next prime is 3216911. The reversal of 3216887 is 7886123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3216887 - 2¹² = 3212791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3216881) 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, 1608443 + 1608444.

It is an arithmetic number, because the mean of its divisors is an integer number (1608444).

Almost surely, 2^3216887 is an apocalyptic number.

3216887 is a deficient number, since it is larger than the sum of its proper divisors (1).

3216887 is an equidigital number, since it uses as much as digits as its factorization.

3216887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 35.

The square root of 3216887 is about 1793.5682312084. The cubic root of 3216887 is about 147.6200229640.

The spelling of 3216887 in words is "three million, two hundred sixteen thousand, eight hundred eighty-seven".