3621941 has 2 divisors, whose sum is σ = 3621942. Its totient is φ = 3621940.

The previous prime is 3621931. The next prime is 3621973. The reversal of 3621941 is 1491263.

3621941 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., 1876900 + 1745041 = 1370^2 + 1321^2 .

It is a cyclic number.

It is not a de Polignac number, because 3621941 - 2¹⁰ = 3620917 is a prime.

It is a Chen prime.

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 3621941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3621911) 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, 1810970 + 1810971.

It is an arithmetic number, because the mean of its divisors is an integer number (1810971).

Almost surely, 2^3621941 is an apocalyptic number.

It is an amenable number.

3621941 is a deficient number, since it is larger than the sum of its proper divisors (1).

3621941 is an equidigital number, since it uses as much as digits as its factorization.

3621941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 26.

The square root of 3621941 is about 1903.1397741627. The cubic root of 3621941 is about 153.5726189302.

The spelling of 3621941 in words is "three million, six hundred twenty-one thousand, nine hundred forty-one".