6441992 has 8 divisors (see below), whose sum is σ = 12078750. Its totient is φ = 3220992.

The previous prime is 6441989. The next prime is 6442003. The reversal of 6441992 is 2991446.

It can be written as a sum of positive squares in only one way, i.e., 5885476 + 556516 = 2426^2 + 746^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402617 + ... + 402632.

Almost surely, 2^6441992 is an apocalyptic number.

It is an amenable number.

6441992 is a deficient number, since it is larger than the sum of its proper divisors (5636758).

6441992 is a wasteful number, since it uses less digits than its factorization.

6441992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805255 (or 805251 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 6441992 is about 2538.1079567268. The cubic root of 6441992 is about 186.0687301401.

The spelling of 6441992 in words is "six million, four hundred forty-one thousand, nine hundred ninety-two".