4238791 has 2 divisors, whose sum is σ = 4238792. Its totient is φ = 4238790.

The previous prime is 4238783. The next prime is 4238807. The reversal of 4238791 is 1978324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4238791 - 2³ = 4238783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4238761) 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, 2119395 + 2119396.

It is an arithmetic number, because the mean of its divisors is an integer number (2119396).

Almost surely, 2^4238791 is an apocalyptic number.

4238791 is a deficient number, since it is larger than the sum of its proper divisors (1).

4238791 is an equidigital number, since it uses as much as digits as its factorization.

4238791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 4238791 is about 2058.8324361152. The cubic root of 4238791 is about 161.8380615169.

The spelling of 4238791 in words is "four million, two hundred thirty-eight thousand, seven hundred ninety-one".