3680549 has 2 divisors, whose sum is σ = 3680550. Its totient is φ = 3680548.

The previous prime is 3680539. The next prime is 3680563. The reversal of 3680549 is 9450863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1876900 + 1803649 = 1370^2 + 1343^2 .

It is a cyclic number.

It is not a de Polignac number, because 3680549 - 2⁴ = 3680533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3680519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1840274 + 1840275.

It is an arithmetic number, because the mean of its divisors is an integer number (1840275).

Almost surely, 2^3680549 is an apocalyptic number.

It is an amenable number.

3680549 is a deficient number, since it is larger than the sum of its proper divisors (1).

3680549 is an equidigital number, since it uses as much as digits as its factorization.

3680549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 3680549 is about 1918.4756970053. The cubic root of 3680549 is about 154.3965296946.

The spelling of 3680549 in words is "three million, six hundred eighty thousand, five hundred forty-nine".