6725881 has 2 divisors, whose sum is σ = 6725882. Its totient is φ = 6725880.

The previous prime is 6725879. The next prime is 6725891. The reversal of 6725881 is 1885276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3767481 + 2958400 = 1941^2 + 1720^2 .

It is a cyclic number.

It is not a de Polignac number, because 6725881 - 2¹ = 6725879 is a prime.

It is a super-2 number, since 2×6725881² = 90474950452322, which contains 22 as substring.

Together with 6725879, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6725881.

It is not a weakly prime, because it can be changed into another prime (6725861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3362940 + 3362941.

It is an arithmetic number, because the mean of its divisors is an integer number (3362941).

Almost surely, 2^6725881 is an apocalyptic number.

It is an amenable number.

6725881 is a deficient number, since it is larger than the sum of its proper divisors (1).

6725881 is an equidigital number, since it uses as much as digits as its factorization.

6725881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 37.

The square root of 6725881 is about 2593.4303537978. The cubic root of 6725881 is about 188.7627922853.

The spelling of 6725881 in words is "six million, seven hundred twenty-five thousand, eight hundred eighty-one".