3679661 has 2 divisors, whose sum is σ = 3679662. Its totient is φ = 3679660.

The previous prime is 3679649. The next prime is 3679679. The reversal of 3679661 is 1669763.

3679661 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., 1974025 + 1705636 = 1405^2 + 1306^2 .

It is an emirp because it is prime and its reverse (1669763) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3679661 - 2¹⁴ = 3663277 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3679601) 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, 1839830 + 1839831.

It is an arithmetic number, because the mean of its divisors is an integer number (1839831).

Almost surely, 2^3679661 is an apocalyptic number.

It is an amenable number.

3679661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3679661 is an equidigital number, since it uses as much as digits as its factorization.

3679661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 38.

The square root of 3679661 is about 1918.2442493072. The cubic root of 3679661 is about 154.3841116970.

It can be divided in two parts, 36 and 79661, that added together give a palindrome (79697).

The spelling of 3679661 in words is "three million, six hundred seventy-nine thousand, six hundred sixty-one".