3940271 has 2 divisors, whose sum is σ = 3940272. Its totient is φ = 3940270.

The previous prime is 3940267. The next prime is 3940273. The reversal of 3940271 is 1720493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3940271 - 2² = 3940267 is a prime.

Together with 3940273, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3940271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3940273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1970135 + 1970136.

It is an arithmetic number, because the mean of its divisors is an integer number (1970136).

Almost surely, 2^3940271 is an apocalyptic number.

3940271 is a deficient number, since it is larger than the sum of its proper divisors (1).

3940271 is an equidigital number, since it uses as much as digits as its factorization.

3940271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 3940271 is about 1985.0115868679. The cubic root of 3940271 is about 157.9460238636.

The spelling of 3940271 in words is "three million, nine hundred forty thousand, two hundred seventy-one".