3680669 has 2 divisors, whose sum is σ = 3680670. Its totient is φ = 3680668.

The previous prime is 3680659. The next prime is 3680681. The reversal of 3680669 is 9660863.

It is a happy number.

3680669 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., 2088025 + 1592644 = 1445^2 + 1262^2 .

It is an emirp because it is prime and its reverse (9660863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3680669 - 2¹⁶ = 3615133 is a prime.

It is a super-2 number, since 2×3680669² = 27094648575122, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3680639) 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, 1840334 + 1840335.

It is an arithmetic number, because the mean of its divisors is an integer number (1840335).

Almost surely, 2^3680669 is an apocalyptic number.

It is an amenable number.

3680669 is a deficient number, since it is larger than the sum of its proper divisors (1).

3680669 is an equidigital number, since it uses as much as digits as its factorization.

3680669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 3680669 is about 1918.5069715797. The cubic root of 3680669 is about 154.3982076492.

The spelling of 3680669 in words is "three million, six hundred eighty thousand, six hundred sixty-nine".