2216635 has 8 divisors (see below), whose sum is σ = 2800080. Its totient is φ = 1679904.

The previous prime is 2216629. The next prime is 2216653. The reversal of 2216635 is 5366122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2216635 - 2⁵ = 2216603 is a prime.

2216635 is a lucky number.

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, 11572 + ... + 11761.

It is an arithmetic number, because the mean of its divisors is an integer number (350010).

2^2216635 is an apocalyptic number.

2216635 is a deficient number, since it is larger than the sum of its proper divisors (583445).

2216635 is a wasteful number, since it uses less digits than its factorization.

2216635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23357.

The product of its digits is 2160, while the sum is 25.

The square root of 2216635 is about 1488.8367942793. The cubic root of 2216635 is about 130.3861300753.

It can be divided in two parts, 22166 and 35, that added together give a square (22201 = 149²).

The spelling of 2216635 in words is "two million, two hundred sixteen thousand, six hundred thirty-five".