6685741 has 2 divisors, whose sum is σ = 6685742. Its totient is φ = 6685740.

The previous prime is 6685717. The next prime is 6685751. The reversal of 6685741 is 1475866.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6300100 + 385641 = 2510^2 + 621^2 .

It is a cyclic number.

It is not a de Polignac number, because 6685741 - 2¹⁵ = 6652973 is a prime.

6685741 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6685741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6685711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3342870 + 3342871.

It is an arithmetic number, because the mean of its divisors is an integer number (3342871).

Almost surely, 2^6685741 is an apocalyptic number.

It is an amenable number.

6685741 is a deficient number, since it is larger than the sum of its proper divisors (1).

6685741 is an equidigital number, since it uses as much as digits as its factorization.

6685741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 37.

The square root of 6685741 is about 2585.6799879335. The cubic root of 6685741 is about 188.3865312081.

The spelling of 6685741 in words is "six million, six hundred eighty-five thousand, seven hundred forty-one".