3668941 has 2 divisors, whose sum is σ = 3668942. Its totient is φ = 3668940.

The previous prime is 3668939. The next prime is 3668953. The reversal of 3668941 is 1498663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3164841 + 504100 = 1779^2 + 710^2 .

It is a cyclic number.

It is not a de Polignac number, because 3668941 - 2¹ = 3668939 is a prime.

It is a super-2 number, since 2×3668941² = 26922256122962, which contains 22 as substring.

Together with 3668939, it forms a pair of twin primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3668941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3668911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1834470 + 1834471.

It is an arithmetic number, because the mean of its divisors is an integer number (1834471).

Almost surely, 2^3668941 is an apocalyptic number.

It is an amenable number.

3668941 is a deficient number, since it is larger than the sum of its proper divisors (1).

3668941 is an equidigital number, since it uses as much as digits as its factorization.

3668941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The square root of 3668941 is about 1915.4479893748. The cubic root of 3668941 is about 154.2340428493.

The spelling of 3668941 in words is "three million, six hundred sixty-eight thousand, nine hundred forty-one".