6725861 has 2 divisors, whose sum is σ = 6725862. Its totient is φ = 6725860.

The previous prime is 6725843. The next prime is 6725879. The reversal of 6725861 is 1685276.

It is a balanced prime because it is at equal distance from previous prime (6725843) and next prime (6725879).

It can be written as a sum of positive squares in only one way, i.e., 6076225 + 649636 = 2465^2 + 806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6725861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6725881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3362930 + 3362931.

It is an arithmetic number, because the mean of its divisors is an integer number (3362931).

Almost surely, 2^6725861 is an apocalyptic number.

It is an amenable number.

6725861 is a deficient number, since it is larger than the sum of its proper divisors (1).

6725861 is an equidigital number, since it uses as much as digits as its factorization.

6725861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 6725861 is about 2593.4264978981. The cubic root of 6725861 is about 188.7626051842.

The spelling of 6725861 in words is "six million, seven hundred twenty-five thousand, eight hundred sixty-one".