6641317 has 6 divisors (see below), whose sum is σ = 7009638. Its totient is φ = 6291432.

The previous prime is 6641291. The next prime is 6641329. The reversal of 6641317 is 7131466.

It can be written as a sum of positive squares in only one way, i.e., 6482116 + 159201 = 2546^2 + 399^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6641317 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 (6641357) 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, 8838 + ... + 9559.

It is an arithmetic number, because the mean of its divisors is an integer number (1168273).

Almost surely, 2^6641317 is an apocalyptic number.

It is an amenable number.

6641317 is a deficient number, since it is larger than the sum of its proper divisors (368321).

6641317 is a wasteful number, since it uses less digits than its factorization.

6641317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18435 (or 18416 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 6641317 is about 2577.0752802353. The cubic root of 6641317 is about 187.9683532818.

It can be divided in two parts, 66413 and 17, that added together give a triangular number (66430 = T₃₆₄).

The spelling of 6641317 in words is "six million, six hundred forty-one thousand, three hundred seventeen".