6717281 has 2 divisors, whose sum is σ = 6717282. Its totient is φ = 6717280.

The previous prime is 6717229. The next prime is 6717301. The reversal of 6717281 is 1827176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5216656 + 1500625 = 2284^2 + 1225^2 .

It is a cyclic number.

It is not a de Polignac number, because 6717281 - 2¹⁰ = 6716257 is a prime.

It is a super-2 number, since 2×6717281² = 90243728065922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6717181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3358640 + 3358641.

It is an arithmetic number, because the mean of its divisors is an integer number (3358641).

Almost surely, 2^6717281 is an apocalyptic number.

It is an amenable number.

6717281 is a deficient number, since it is larger than the sum of its proper divisors (1).

6717281 is an equidigital number, since it uses as much as digits as its factorization.

6717281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 32.

The square root of 6717281 is about 2591.7717877931. The cubic root of 6717281 is about 188.6823045691.

The spelling of 6717281 in words is "six million, seven hundred seventeen thousand, two hundred eighty-one".