6885761 has 2 divisors, whose sum is σ = 6885762. Its totient is φ = 6885760.

The previous prime is 6885743. The next prime is 6885779. The reversal of 6885761 is 1675886.

6885761 = 1855² + 1856².

It is a balanced prime because it is at equal distance from previous prime (6885743) and next prime (6885779).

It can be written as a sum of positive squares in only one way, i.e., 3444736 + 3441025 = 1856^2 + 1855^2 .

It is a cyclic number.

It is not a de Polignac number, because 6885761 - 2¹⁰ = 6884737 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6885161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3442880 + 3442881.

It is an arithmetic number, because the mean of its divisors is an integer number (3442881).

Almost surely, 2^6885761 is an apocalyptic number.

6885761 is the 1856-th centered square number.

It is an amenable number.

6885761 is a deficient number, since it is larger than the sum of its proper divisors (1).

6885761 is an equidigital number, since it uses as much as digits as its factorization.

6885761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 41.

The square root of 6885761 is about 2624.0733602550. The cubic root of 6885761 is about 190.2467799794.

The spelling of 6885761 in words is "six million, eight hundred eighty-five thousand, seven hundred sixty-one".