3900216 has 32 divisors (see below), whose sum is σ = 9853200. Its totient is φ = 1286400.

The previous prime is 3900199. The next prime is 3900223. The reversal of 3900216 is 6120093.

3900216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3900192 and 3900201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1620 + ... + 3228.

Almost surely, 2^3900216 is an apocalyptic number.

It is an amenable number.

3900216 is an abundant number, since it is smaller than the sum of its proper divisors (5952984).

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

3900216 is a wasteful number, since it uses less digits than its factorization.

3900216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719 (or 1715 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 3900216 is about 1974.8964529818. The cubic root of 3900216 is about 157.4089975681.

The spelling of 3900216 in words is "three million, nine hundred thousand, two hundred sixteen".