6441001 has 6 divisors (see below), whose sum is σ = 7492650. Its totient is φ = 5520816.

The previous prime is 6440999. The next prime is 6441031. The reversal of 6441001 is 1001446.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6350400 + 90601 = 2520^2 + 301^2 .

It is not a de Polignac number, because 6441001 - 2¹ = 6440999 is a prime.

It is a Duffinian number.

6441001 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6441031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65676 + ... + 65773.

It is an arithmetic number, because the mean of its divisors is an integer number (1248775).

Almost surely, 2^6441001 is an apocalyptic number.

It is an amenable number.

6441001 is a deficient number, since it is larger than the sum of its proper divisors (1051649).

6441001 is a wasteful number, since it uses less digits than its factorization.

6441001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131463 (or 131456 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 6441001 is about 2537.9127250558. The cubic root of 6441001 is about 186.0591883934.

Adding to 6441001 its reverse (1001446), we get a palindrome (7442447).

The spelling of 6441001 in words is "six million, four hundred forty-one thousand, one".