2486681 has 2 divisors, whose sum is σ = 2486682. Its totient is φ = 2486680.

The previous prime is 2486677. The next prime is 2486689. The reversal of 2486681 is 1866842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1974025 + 512656 = 1405^2 + 716^2 .

It is a cyclic number.

It is not a de Polignac number, because 2486681 - 2² = 2486677 is a prime.

It is a super-2 number, since 2×2486681² = 12367164791522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2486689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1243340 + 1243341.

It is an arithmetic number, because the mean of its divisors is an integer number (1243341).

2^2486681 is an apocalyptic number.

It is an amenable number.

2486681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2486681 is an equidigital number, since it uses as much as digits as its factorization.

2486681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 35.

The square root of 2486681 is about 1576.9213677289. The cubic root of 2486681 is about 135.4794293469.

The spelling of 2486681 in words is "two million, four hundred eighty-six thousand, six hundred eighty-one".