3216884 has 24 divisors (see below), whose sum is σ = 6205248. Its totient is φ = 1447040.

The previous prime is 3216881. The next prime is 3216887. The reversal of 3216884 is 4886123.

3216884 = 146² + 147² + ... + 233².

3216884 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3216881) and next prime (3216887).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3216884.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3216881) 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 in 7 ways as a sum of consecutive naturals, for example, 4649 + ... + 5295.

It is an arithmetic number, because the mean of its divisors is an integer number (258552).

Almost surely, 2^3216884 is an apocalyptic number.

It is an amenable number.

3216884 is a deficient number, since it is larger than the sum of its proper divisors (2988364).

3216884 is a wasteful number, since it uses less digits than its factorization.

3216884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 773 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 3216884 is about 1793.5673948865. The cubic root of 3216884 is about 147.6199770749.

Adding to 3216884 its sum of digits (32), we get a triangular number (3216916 = T₂₅₃₆).

The spelling of 3216884 in words is "three million, two hundred sixteen thousand, eight hundred eighty-four".