2206447 has 8 divisors (see below), whose sum is σ = 2360016. Its totient is φ = 2055552.

The previous prime is 2206441. The next prime is 2206453. The reversal of 2206447 is 7446022.

It is an interprime number because it is at equal distance from previous prime (2206441) and next prime (2206453).

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 2206447 - 2³ = 2206439 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 (2206441) 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 7 ways as a sum of consecutive naturals, for example, 1213 + ... + 2425.

It is an arithmetic number, because the mean of its divisors is an integer number (295002).

2^2206447 is an apocalyptic number.

2206447 is the 1213-rd pentagonal number.

2206447 is a deficient number, since it is larger than the sum of its proper divisors (153569).

2206447 is a wasteful number, since it uses less digits than its factorization.

2206447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 2206447 is about 1485.4113908275. The cubic root of 2206447 is about 130.1860649250.

The spelling of 2206447 in words is "two million, two hundred six thousand, four hundred forty-seven".