6672761 has 2 divisors, whose sum is σ = 6672762. Its totient is φ = 6672760.

The previous prime is 6672749. The next prime is 6672769. The reversal of 6672761 is 1672766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4541161 + 2131600 = 2131^2 + 1460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6672761 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6672769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3336380 + 3336381.

It is an arithmetic number, because the mean of its divisors is an integer number (3336381).

Almost surely, 2^6672761 is an apocalyptic number.

It is an amenable number.

6672761 is a deficient number, since it is larger than the sum of its proper divisors (1).

6672761 is an equidigital number, since it uses as much as digits as its factorization.

6672761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 6672761 is about 2583.1687904587. The cubic root of 6672761 is about 188.2645381820.

It can be divided in two parts, 66 and 72761, that added together give a palindrome (72827).

The spelling of 6672761 in words is "six million, six hundred seventy-two thousand, seven hundred sixty-one".