6665741 has 2 divisors, whose sum is σ = 6665742. Its totient is φ = 6665740.

The previous prime is 6665719. The next prime is 6665773. The reversal of 6665741 is 1475666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3407716 + 3258025 = 1846^2 + 1805^2 .

It is a cyclic number.

It is not a de Polignac number, because 6665741 - 2¹⁰ = 6664717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6661741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332870 + 3332871.

It is an arithmetic number, because the mean of its divisors is an integer number (3332871).

Almost surely, 2^6665741 is an apocalyptic number.

It is an amenable number.

6665741 is a deficient number, since it is larger than the sum of its proper divisors (1).

6665741 is an equidigital number, since it uses as much as digits as its factorization.

6665741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 6665741 is about 2581.8096366696. The cubic root of 6665741 is about 188.1984945162.

The spelling of 6665741 in words is "six million, six hundred sixty-five thousand, seven hundred forty-one".