6637349 has 8 divisors (see below), whose sum is σ = 6876792. Its totient is φ = 6402240.

The previous prime is 6637339. The next prime is 6637357. The reversal of 6637349 is 9437366.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 297025 + 6340324 = 545^2 + 2518^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6637349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6637339) 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, 2207 + ... + 4259.

It is an arithmetic number, because the mean of its divisors is an integer number (859599).

Almost surely, 2^6637349 is an apocalyptic number.

It is an amenable number.

6637349 is a deficient number, since it is larger than the sum of its proper divisors (239443).

6637349 is a wasteful number, since it uses less digits than its factorization.

6637349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167.

The product of its digits is 81648, while the sum is 38.

The square root of 6637349 is about 2576.3053002313. The cubic root of 6637349 is about 187.9309105568.

The spelling of 6637349 in words is "six million, six hundred thirty-seven thousand, three hundred forty-nine".