2206979 has 4 divisors (see below), whose sum is σ = 2253984. Its totient is φ = 2159976.

The previous prime is 2206969. The next prime is 2206993. The reversal of 2206979 is 9796022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2206979 - 2⁸ = 2206723 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 2¹⁹ + 0 + 6⁸ + 9² + 7⁴ + 9² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2206909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23432 + ... + 23525.

It is an arithmetic number, because the mean of its divisors is an integer number (563496).

2^2206979 is an apocalyptic number.

2206979 is a deficient number, since it is larger than the sum of its proper divisors (47005).

2206979 is an equidigital number, since it uses as much as digits as its factorization.

2206979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47004.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 2206979 is about 1485.5904550043. The cubic root of 2206979 is about 130.1965272083.

The spelling of 2206979 in words is "two million, two hundred six thousand, nine hundred seventy-nine".