3804947 has 2 divisors, whose sum is σ = 3804948. Its totient is φ = 3804946.

The previous prime is 3804943. The next prime is 3804949. The reversal of 3804947 is 7494083.

3804947 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 a cyclic number.

It is not a de Polignac number, because 3804947 - 2² = 3804943 is a prime.

Together with 3804949, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3804943) 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, 1902473 + 1902474.

It is an arithmetic number, because the mean of its divisors is an integer number (1902474).

Almost surely, 2^3804947 is an apocalyptic number.

3804947 is a deficient number, since it is larger than the sum of its proper divisors (1).

3804947 is an equidigital number, since it uses as much as digits as its factorization.

3804947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 3804947 is about 1950.6273349874. The cubic root of 3804947 is about 156.1167627918.

The spelling of 3804947 in words is "three million, eight hundred four thousand, nine hundred forty-seven".