6637443 has 8 divisors (see below), whose sum is σ = 8873808. Its totient is φ = 4413024.

The previous prime is 6637439. The next prime is 6637447. The reversal of 6637443 is 3447366.

It is an interprime number because it is at equal distance from previous prime (6637439) and next prime (6637447).

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

It is not a de Polignac number, because 6637443 - 2² = 6637439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6637447) 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 7 ways as a sum of consecutive naturals, for example, 1596 + ... + 3977.

It is an arithmetic number, because the mean of its divisors is an integer number (1109226).

Almost surely, 2^6637443 is an apocalyptic number.

6637443 is a deficient number, since it is larger than the sum of its proper divisors (2236365).

6637443 is a wasteful number, since it uses less digits than its factorization.

6637443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5973.

The product of its digits is 36288, while the sum is 33.

The square root of 6637443 is about 2576.3235433462. The cubic root of 6637443 is about 187.9317977294.

The spelling of 6637443 in words is "six million, six hundred thirty-seven thousand, four hundred forty-three".