3216516 has 12 divisors (see below), whose sum is σ = 7505232. Its totient is φ = 1072168.

The previous prime is 3216511. The next prime is 3216523. The reversal of 3216516 is 6156123.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (3216511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134010 + ... + 134033.

It is an arithmetic number, because the mean of its divisors is an integer number (625436).

Almost surely, 2^3216516 is an apocalyptic number.

It is an amenable number.

3216516 is an abundant number, since it is smaller than the sum of its proper divisors (4288716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3216516 is a wasteful number, since it uses less digits than its factorization.

3216516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268050 (or 268048 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 3216516 is about 1793.4648031116. The cubic root of 3216516 is about 147.6143477948.

The spelling of 3216516 in words is "three million, two hundred sixteen thousand, five hundred sixteen".