3819691 has 2 divisors, whose sum is σ = 3819692. Its totient is φ = 3819690.

The previous prime is 3819671. The next prime is 3819707. The reversal of 3819691 is 1969183.

3819691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (1969183) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3819691 is a prime.

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 3819691.

It is not a weakly prime, because it can be changed into another prime (3819631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1909845 + 1909846.

It is an arithmetic number, because the mean of its divisors is an integer number (1909846).

Almost surely, 2^3819691 is an apocalyptic number.

3819691 is a deficient number, since it is larger than the sum of its proper divisors (1).

3819691 is an equidigital number, since it uses as much as digits as its factorization.

3819691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 37.

The square root of 3819691 is about 1954.4029778938. The cubic root of 3819691 is about 156.3181513902.

The spelling of 3819691 in words is "three million, eight hundred nineteen thousand, six hundred ninety-one".