3207216 has 40 divisors (see below), whose sum is σ = 8374960. Its totient is φ = 1057536.

The previous prime is 3207199. The next prime is 3207221. The reversal of 3207216 is 6127023.

It is a happy number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 3207192 and 3207201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4926 + ... + 5538.

It is an arithmetic number, because the mean of its divisors is an integer number (209374).

Almost surely, 2^3207216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3207216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4187480).

3207216 is an abundant number, since it is smaller than the sum of its proper divisors (5167744).

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

3207216 is a wasteful number, since it uses less digits than its factorization.

3207216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 3207216 is about 1790.8701795496. The cubic root of 3207216 is about 147.4719433373.

The spelling of 3207216 in words is "three million, two hundred seven thousand, two hundred sixteen".