6677281 has 8 divisors (see below), whose sum is σ = 7234920. Its totient is φ = 6125952.

The previous prime is 6677273. The next prime is 6677299. The reversal of 6677281 is 1827766.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 46656 + 6630625 = 216^2 + 2575^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6677281 - 2³ = 6677273 is a prime.

It is a super-2 number, since 2×6677281² = 89172163105922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6677281.

It is not an unprimeable number, because it can be changed into a prime (6677261) 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, 765 + ... + 3733.

It is an arithmetic number, because the mean of its divisors is an integer number (904365).

Almost surely, 2^6677281 is an apocalyptic number.

It is an amenable number.

6677281 is a deficient number, since it is larger than the sum of its proper divisors (557639).

6677281 is a wasteful number, since it uses less digits than its factorization.

6677281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155.

The product of its digits is 28224, while the sum is 37.

The square root of 6677281 is about 2584.0435367849. The cubic root of 6677281 is about 188.3070375135.

The spelling of 6677281 in words is "six million, six hundred seventy-seven thousand, two hundred eighty-one".