6444167 has 2 divisors, whose sum is σ = 6444168. Its totient is φ = 6444166.

The previous prime is 6444161. The next prime is 6444169. The reversal of 6444167 is 7614446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6444167 - 2⁸ = 6443911 is a prime.

Together with 6444169, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6444161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222083 + 3222084.

It is an arithmetic number, because the mean of its divisors is an integer number (3222084).

Almost surely, 2^6444167 is an apocalyptic number.

6444167 is a deficient number, since it is larger than the sum of its proper divisors (1).

6444167 is an equidigital number, since it uses as much as digits as its factorization.

6444167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 32.

The square root of 6444167 is about 2538.5363893393. The cubic root of 6444167 is about 186.0896684849.

The spelling of 6444167 in words is "six million, four hundred forty-four thousand, one hundred sixty-seven".