2216979 has 12 divisors (see below), whose sum is σ = 3216616. Its totient is φ = 1471392.

The previous prime is 2216969. The next prime is 2216989. The reversal of 2216979 is 9796122.

It is an interprime number because it is at equal distance from previous prime (2216969) and next prime (2216989).

It is not a de Polignac number, because 2216979 - 2¹² = 2212883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2424 + ... + 3210.

2^2216979 is an apocalyptic number.

2216979 is a deficient number, since it is larger than the sum of its proper divisors (999637).

2216979 is a wasteful number, since it uses less digits than its factorization.

2216979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106 (or 1103 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 2216979 is about 1488.9523162278. The cubic root of 2216979 is about 130.3928746091.

The spelling of 2216979 in words is "two million, two hundred sixteen thousand, nine hundred seventy-nine".