6712661 has 2 divisors, whose sum is σ = 6712662. Its totient is φ = 6712660.

The previous prime is 6712639. The next prime is 6712669. The reversal of 6712661 is 1662176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4972900 + 1739761 = 2230^2 + 1319^2 .

It is a cyclic number.

It is not a de Polignac number, because 6712661 - 2¹⁰ = 6711637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6712669) 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, 3356330 + 3356331.

It is an arithmetic number, because the mean of its divisors is an integer number (3356331).

Almost surely, 2^6712661 is an apocalyptic number.

It is an amenable number.

6712661 is a deficient number, since it is larger than the sum of its proper divisors (1).

6712661 is an equidigital number, since it uses as much as digits as its factorization.

6712661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 29.

The square root of 6712661 is about 2590.8803523127. The cubic root of 6712661 is about 188.6390374509.

The spelling of 6712661 in words is "six million, seven hundred twelve thousand, six hundred sixty-one".