3621911 has 2 divisors, whose sum is σ = 3621912. Its totient is φ = 3621910.

The previous prime is 3621907. The next prime is 3621929. The reversal of 3621911 is 1191263.

It is a happy number.

3621911 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 is a cyclic number.

It is not a de Polignac number, because 3621911 - 2² = 3621907 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3621931) 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, 1810955 + 1810956.

It is an arithmetic number, because the mean of its divisors is an integer number (1810956).

Almost surely, 2^3621911 is an apocalyptic number.

3621911 is a deficient number, since it is larger than the sum of its proper divisors (1).

3621911 is an equidigital number, since it uses as much as digits as its factorization.

3621911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 23.

The square root of 3621911 is about 1903.1318924342. The cubic root of 3621911 is about 153.5721949226.

The spelling of 3621911 in words is "three million, six hundred twenty-one thousand, nine hundred eleven".