2685481 has 2 divisors, whose sum is σ = 2685482. Its totient is φ = 2685480.

The previous prime is 2685467. The next prime is 2685509. The reversal of 2685481 is 1845862.

2685481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2223081 + 462400 = 1491^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 2685481 - 2¹³ = 2677289 is a prime.

It is a super-2 number, since 2×2685481² = 14423616402722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2685401) 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, 1342740 + 1342741.

It is an arithmetic number, because the mean of its divisors is an integer number (1342741).

2^2685481 is an apocalyptic number.

It is an amenable number.

2685481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2685481 is an equidigital number, since it uses as much as digits as its factorization.

2685481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 34.

The square root of 2685481 is about 1638.7437261512. The cubic root of 2685481 is about 138.9976191301.

The spelling of 2685481 in words is "two million, six hundred eighty-five thousand, four hundred eighty-one".