578478889 has 2 divisors, whose sum is σ = 578478890. Its totient is φ = 578478888.

The previous prime is 578478853. The next prime is 578478899. The reversal of 578478889 is 988874875.

578478889 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 can be written as a sum of positive squares in only one way, i.e., 525188889 + 53290000 = 22917^2 + 7300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-578478889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 578478889.

It is not a weakly prime, because it can be changed into another prime (578478829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289239444 + 289239445.

It is an arithmetic number, because the mean of its divisors is an integer number (289239445).

Almost surely, 2^578478889 is an apocalyptic number.

It is an amenable number.

578478889 is a deficient number, since it is larger than the sum of its proper divisors (1).

578478889 is an equidigital number, since it uses as much as digits as its factorization.

578478889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36126720, while the sum is 64.

The square root of 578478889 is about 24051.5880764660. The cubic root of 578478889 is about 833.2254082988.

The spelling of 578478889 in words is "five hundred seventy-eight million, four hundred seventy-eight thousand, eight hundred eighty-nine".