3548681 has 2 divisors, whose sum is σ = 3548682. Its totient is φ = 3548680.

The previous prime is 3548639. The next prime is 3548683. The reversal of 3548681 is 1868453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3182656 + 366025 = 1784^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 3548681 - 2¹⁴ = 3532297 is a prime.

It is a super-2 number, since 2×3548681² = 25186273679522, which contains 22 as substring.

Together with 3548683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3548683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1774340 + 1774341.

It is an arithmetic number, because the mean of its divisors is an integer number (1774341).

Almost surely, 2^3548681 is an apocalyptic number.

It is an amenable number.

3548681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3548681 is an equidigital number, since it uses as much as digits as its factorization.

3548681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 35.

The square root of 3548681 is about 1883.7943093661. The cubic root of 3548681 is about 152.5301346881.

The spelling of 3548681 in words is "three million, five hundred forty-eight thousand, six hundred eighty-one".