2216669 has 8 divisors (see below), whose sum is σ = 2728320. Its totient is φ = 1753776.

The previous prime is 2216659. The next prime is 2216699. The reversal of 2216669 is 9666122.

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

It is a cyclic number.

It is not a de Polignac number, because 2216669 - 2⁴ = 2216653 is a prime.

It is a super-2 number, since 2×2216669² = 9827242911122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12089 + ... + 12270.

It is an arithmetic number, because the mean of its divisors is an integer number (341040).

2^2216669 is an apocalyptic number.

It is an amenable number.

2216669 is a deficient number, since it is larger than the sum of its proper divisors (511651).

2216669 is a wasteful number, since it uses less digits than its factorization.

2216669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24379.

The product of its digits is 7776, while the sum is 32.

The square root of 2216669 is about 1488.8482125455. The cubic root of 2216669 is about 130.3867967173.

The spelling of 2216669 in words is "two million, two hundred sixteen thousand, six hundred sixty-nine".