2216915 has 8 divisors (see below), whose sum is σ = 2676240. Its totient is φ = 1762912.

The previous prime is 2216909. The next prime is 2216917. The reversal of 2216915 is 5196122.

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 2216915 - 2⁸ = 2216659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2216917) 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, 344 + ... + 2133.

It is an arithmetic number, because the mean of its divisors is an integer number (334530).

2^2216915 is an apocalyptic number.

2216915 is a deficient number, since it is larger than the sum of its proper divisors (459325).

2216915 is a wasteful number, since it uses less digits than its factorization.

2216915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661.

The product of its digits is 1080, while the sum is 26.

The square root of 2216915 is about 1488.9308244509. The cubic root of 2216915 is about 130.3916198649.

The spelling of 2216915 in words is "two million, two hundred sixteen thousand, nine hundred fifteen".