6444862 has 8 divisors (see below), whose sum is σ = 9678456. Its totient is φ = 3218712.

The previous prime is 6444859. The next prime is 6444863. The reversal of 6444862 is 2684446.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6444863) 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 3 ways as a sum of consecutive naturals, for example, 1573 + ... + 3919.

It is an arithmetic number, because the mean of its divisors is an integer number (1209807).

Almost surely, 2^6444862 is an apocalyptic number.

6444862 is a deficient number, since it is larger than the sum of its proper divisors (3233594).

6444862 is a wasteful number, since it uses less digits than its factorization.

6444862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3722.

The product of its digits is 36864, while the sum is 34.

The square root of 6444862 is about 2538.6732755516. The cubic root of 6444862 is about 186.0963581352.

The spelling of 6444862 in words is "six million, four hundred forty-four thousand, eight hundred sixty-two".