3920216 has 16 divisors (see below), whose sum is σ = 7391400. Its totient is φ = 1949184.

The previous prime is 3920209. The next prime is 3920227. The reversal of 3920216 is 6120293.

It is a junction number, because it is equal to n+sod(n) for n = 3920191 and 3920200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275 + ... + 2813.

Almost surely, 2^3920216 is an apocalyptic number.

It is an amenable number.

3920216 is a deficient number, since it is larger than the sum of its proper divisors (3471184).

3920216 is a wasteful number, since it uses less digits than its factorization.

3920216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738 (or 2734 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 3920216 is about 1979.9535348083. The cubic root of 3920216 is about 157.6775992749.

The spelling of 3920216 in words is "three million, nine hundred twenty thousand, two hundred sixteen".