3949216 has 24 divisors (see below), whose sum is σ = 7832160. Its totient is φ = 1960128.

The previous prime is 3949213. The next prime is 3949217. The reversal of 3949216 is 6129493.

It is not an unprimeable number, because it can be changed into a prime (3949213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4975 + ... + 5713.

It is an arithmetic number, because the mean of its divisors is an integer number (326340).

Almost surely, 2^3949216 is an apocalyptic number.

It is an amenable number.

3949216 is a deficient number, since it is larger than the sum of its proper divisors (3882944).

3949216 is a wasteful number, since it uses less digits than its factorization.

3949216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916 (or 908 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 3949216 is about 1987.2634450420. The cubic root of 3949216 is about 158.0654538403.

The spelling of 3949216 in words is "three million, nine hundred forty-nine thousand, two hundred sixteen".