3975911 has 2 divisors, whose sum is σ = 3975912. Its totient is φ = 3975910.

The previous prime is 3975887. The next prime is 3975947. The reversal of 3975911 is 1195793.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3975911 - 2¹⁸ = 3713767 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3975971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1987955 + 1987956.

It is an arithmetic number, because the mean of its divisors is an integer number (1987956).

Almost surely, 2^3975911 is an apocalyptic number.

3975911 is a deficient number, since it is larger than the sum of its proper divisors (1).

3975911 is an equidigital number, since it uses as much as digits as its factorization.

3975911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8505, while the sum is 35.

The square root of 3975911 is about 1993.9686557215. The cubic root of 3975911 is about 158.4208058367.

The spelling of 3975911 in words is "three million, nine hundred seventy-five thousand, nine hundred eleven".