3840191 has 2 divisors, whose sum is σ = 3840192. Its totient is φ = 3840190.

The previous prime is 3840173. The next prime is 3840203. The reversal of 3840191 is 1910483.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3840191 - 2⁶ = 3840127 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3840191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3840091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1920095 + 1920096.

It is an arithmetic number, because the mean of its divisors is an integer number (1920096).

Almost surely, 2^3840191 is an apocalyptic number.

3840191 is a deficient number, since it is larger than the sum of its proper divisors (1).

3840191 is an equidigital number, since it uses as much as digits as its factorization.

3840191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 3840191 is about 1959.6405282602. The cubic root of 3840191 is about 156.5973019222.

The spelling of 3840191 in words is "three million, eight hundred forty thousand, one hundred ninety-one".