3806191 has 2 divisors, whose sum is σ = 3806192. Its totient is φ = 3806190.

The previous prime is 3806189. The next prime is 3806197. The reversal of 3806191 is 1916083.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3806191 - 2¹ = 3806189 is a prime.

Together with 3806189, it forms a pair of twin primes.

It is a Chen prime.

3806191 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3806197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1903095 + 1903096.

It is an arithmetic number, because the mean of its divisors is an integer number (1903096).

Almost surely, 2^3806191 is an apocalyptic number.

3806191 is a deficient number, since it is larger than the sum of its proper divisors (1).

3806191 is an equidigital number, since it uses as much as digits as its factorization.

3806191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 3806191 is about 1950.9461807031. The cubic root of 3806191 is about 156.1337746882.

The spelling of 3806191 in words is "three million, eight hundred six thousand, one hundred ninety-one".