3621701 has 2 divisors, whose sum is σ = 3621702. Its totient is φ = 3621700.

The previous prime is 3621691. The next prime is 3621713. The reversal of 3621701 is 1071263.

It is a happy number.

3621701 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., 2719201 + 902500 = 1649^2 + 950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3621701 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 (3621721) 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, 1810850 + 1810851.

It is an arithmetic number, because the mean of its divisors is an integer number (1810851).

Almost surely, 2^3621701 is an apocalyptic number.

It is an amenable number.

3621701 is a deficient number, since it is larger than the sum of its proper divisors (1).

3621701 is an equidigital number, since it uses as much as digits as its factorization.

3621701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 3621701 is about 1903.0767194204. The cubic root of 3621701 is about 153.5692268040.

Adding to 3621701 its reverse (1071263), we get a palindrome (4692964).

The spelling of 3621701 in words is "three million, six hundred twenty-one thousand, seven hundred one".