2663216 has 20 divisors (see below), whose sum is σ = 5385072. Its totient is φ = 1273536.

The previous prime is 2663209. The next prime is 2663231. The reversal of 2663216 is 6123662.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

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, 3251 + ... + 3986.

2^2663216 is an apocalyptic number.

It is an amenable number.

2663216 is an abundant number, since it is smaller than the sum of its proper divisors (2721856).

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

2663216 is a wasteful number, since it uses less digits than its factorization.

2663216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7268 (or 7262 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 2663216 is about 1631.9362732656. The cubic root of 2663216 is about 138.6124150859.

Adding to 2663216 its reverse (6123662), we get a palindrome (8786878).

The spelling of 2663216 in words is "two million, six hundred sixty-three thousand, two hundred sixteen".