6444165 has 32 divisors (see below), whose sum is σ = 12692736. Its totient is φ = 2718720.

The previous prime is 6444161. The next prime is 6444167. The reversal of 6444165 is 5614446.

It is not a de Polignac number, because 6444165 - 2² = 6444161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6444161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 996 + ... + 3725.

It is an arithmetic number, because the mean of its divisors is an integer number (396648).

Almost surely, 2^6444165 is an apocalyptic number.

6444165 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6444165 is a deficient number, since it is larger than the sum of its proper divisors (6248571).

6444165 is a wasteful number, since it uses less digits than its factorization.

6444165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749.

The product of its digits is 11520, while the sum is 30.

The square root of 6444165 is about 2538.5359954115. The cubic root of 6444165 is about 186.0896492335.

The spelling of 6444165 in words is "six million, four hundred forty-four thousand, one hundred sixty-five".