3709216 has 48 divisors (see below), whose sum is σ = 8648640. Its totient is φ = 1532160.

The previous prime is 3709163. The next prime is 3709249. The reversal of 3709216 is 6129073.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 6211 + ... + 6781.

It is an arithmetic number, because the mean of its divisors is an integer number (180180).

Almost surely, 2^3709216 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 3709216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4324320).

3709216 is an abundant number, since it is smaller than the sum of its proper divisors (4939424).

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

3709216 is a wasteful number, since it uses less digits than its factorization.

3709216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 3709216 is about 1925.9325014133. The cubic root of 3709216 is about 154.7963471775.

The spelling of 3709216 in words is "three million, seven hundred nine thousand, two hundred sixteen".