2206679 has 4 divisors (see below), whose sum is σ = 2322840. Its totient is φ = 2090520.

The previous prime is 2206669. The next prime is 2206681. The reversal of 2206679 is 9766022.

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 2206679 - 2⁴ = 2206663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58052 + ... + 58089.

It is an arithmetic number, because the mean of its divisors is an integer number (580710).

2^2206679 is an apocalyptic number.

2206679 is a deficient number, since it is larger than the sum of its proper divisors (116161).

2206679 is a wasteful number, since it uses less digits than its factorization.

2206679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116160.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 2206679 is about 1485.4894816188. The cubic root of 2206679 is about 130.1906276312.

The spelling of 2206679 in words is "two million, two hundred six thousand, six hundred seventy-nine".