6443165 has 8 divisors (see below), whose sum is σ = 7807488. Its totient is φ = 5104080.

The previous prime is 6443159. The next prime is 6443167. The reversal of 6443165 is 5613446.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6443165 - 2¹⁴ = 6426781 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 (6443167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5741 + ... + 6770.

It is an arithmetic number, because the mean of its divisors is an integer number (975936).

Almost surely, 2^6443165 is an apocalyptic number.

It is an amenable number.

6443165 is a deficient number, since it is larger than the sum of its proper divisors (1364323).

6443165 is a wasteful number, since it uses less digits than its factorization.

6443165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12619.

The product of its digits is 8640, while the sum is 29.

The square root of 6443165 is about 2538.3390238500. The cubic root of 6443165 is about 186.0800229914.

The spelling of 6443165 in words is "six million, four hundred forty-three thousand, one hundred sixty-five".