2164447 has 2 divisors, whose sum is σ = 2164448. Its totient is φ = 2164446.

The previous prime is 2164441. The next prime is 2164453. The reversal of 2164447 is 7444612.

2164447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (2164441) and next prime (2164453).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2164447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2164441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082223 + 1082224.

It is an arithmetic number, because the mean of its divisors is an integer number (1082224).

2^2164447 is an apocalyptic number.

2164447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164447 is an equidigital number, since it uses as much as digits as its factorization.

2164447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 28.

The square root of 2164447 is about 1471.2059679052. The cubic root of 2164447 is about 129.3547314355.

The spelling of 2164447 in words is "two million, one hundred sixty-four thousand, four hundred forty-seven".