4001771 has 2 divisors, whose sum is σ = 4001772. Its totient is φ = 4001770.

The previous prime is 4001743. The next prime is 4001779. The reversal of 4001771 is 1771004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4001771 - 2¹⁰ = 4000747 is a prime.

It is a super-2 number, since 2×4001771² = 32028342272882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4001779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000885 + 2000886.

It is an arithmetic number, because the mean of its divisors is an integer number (2000886).

Almost surely, 2^4001771 is an apocalyptic number.

4001771 is a deficient number, since it is larger than the sum of its proper divisors (1).

4001771 is an equidigital number, since it uses as much as digits as its factorization.

4001771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 4001771 is about 2000.4427010040. The cubic root of 4001771 is about 158.7635291340.

Adding to 4001771 its reverse (1771004), we get a palindrome (5772775).

The spelling of 4001771 in words is "four million, one thousand, seven hundred seventy-one".