6224681 has 2 divisors, whose sum is σ = 6224682. Its totient is φ = 6224680.

The previous prime is 6224671. The next prime is 6224683. The reversal of 6224681 is 1864226.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6205081 + 19600 = 2491^2 + 140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6224681 is a prime.

It is a super-2 number, since 2×6224681² = 77493307103522, which contains 22 as substring.

Together with 6224683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6224683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3112340 + 3112341.

It is an arithmetic number, because the mean of its divisors is an integer number (3112341).

Almost surely, 2^6224681 is an apocalyptic number.

It is an amenable number.

6224681 is a deficient number, since it is larger than the sum of its proper divisors (1).

6224681 is an equidigital number, since it uses as much as digits as its factorization.

6224681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 29.

The square root of 6224681 is about 2494.9310611718. The cubic root of 6224681 is about 183.9525023115.

The spelling of 6224681 in words is "six million, two hundred twenty-four thousand, six hundred eighty-one".