3721771 has 2 divisors, whose sum is σ = 3721772. Its totient is φ = 3721770.

The previous prime is 3721741. The next prime is 3721787. The reversal of 3721771 is 1771273.

3721771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3721771 - 2⁹ = 3721259 is a prime.

It is not a weakly prime, because it can be changed into another prime (3721721) 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, 1860885 + 1860886.

It is an arithmetic number, because the mean of its divisors is an integer number (1860886).

Almost surely, 2^3721771 is an apocalyptic number.

3721771 is a deficient number, since it is larger than the sum of its proper divisors (1).

3721771 is an equidigital number, since it uses as much as digits as its factorization.

3721771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2058, while the sum is 28.

The square root of 3721771 is about 1929.1892079317. The cubic root of 3721771 is about 154.9708026864.

The spelling of 3721771 in words is "three million, seven hundred twenty-one thousand, seven hundred seventy-one".