6636441 has 16 divisors (see below), whose sum is σ = 10257408. Its totient is φ = 3738000.

The previous prime is 6636433. The next prime is 6636457. The reversal of 6636441 is 1446366.

It is not a de Polignac number, because 6636441 - 2³ = 6636433 is a prime.

It is an Ulam number.

6636441 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6636399 and 6636408.

It is not an unprimeable number, because it can be changed into a prime (6676441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735 + ... + 3716.

It is an arithmetic number, because the mean of its divisors is an integer number (641088).

Almost surely, 2^6636441 is an apocalyptic number.

It is an amenable number.

6636441 is a deficient number, since it is larger than the sum of its proper divisors (3620967).

6636441 is a wasteful number, since it uses less digits than its factorization.

6636441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532.

The product of its digits is 10368, while the sum is 30.

The square root of 6636441 is about 2576.1290728533. The cubic root of 6636441 is about 187.9223404159.

The spelling of 6636441 in words is "six million, six hundred thirty-six thousand, four hundred forty-one".