5978891 has 2 divisors, whose sum is σ = 5978892. Its totient is φ = 5978890.

The previous prime is 5978887. The next prime is 5978909. The reversal of 5978891 is 1988795.

It is a happy number.

5978891 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5978891 - 2² = 5978887 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5978801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2989445 + 2989446.

It is an arithmetic number, because the mean of its divisors is an integer number (2989446).

Almost surely, 2^5978891 is an apocalyptic number.

5978891 is a deficient number, since it is larger than the sum of its proper divisors (1).

5978891 is an equidigital number, since it uses as much as digits as its factorization.

5978891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 47.

The square root of 5978891 is about 2445.1770897013. The cubic root of 5978891 is about 181.4987111192.

The spelling of 5978891 in words is "five million, nine hundred seventy-eight thousand, eight hundred ninety-one".