978000559 has 2 divisors, whose sum is σ = 978000560. Its totient is φ = 978000558.

The previous prime is 978000523. The next prime is 978000563. The reversal of 978000559 is 955000879.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 978000559 - 2¹⁹ = 977476271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (978007559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489000279 + 489000280.

It is an arithmetic number, because the mean of its divisors is an integer number (489000280).

Almost surely, 2^978000559 is an apocalyptic number.

978000559 is a deficient number, since it is larger than the sum of its proper divisors (1).

978000559 is an equidigital number, since it uses as much as digits as its factorization.

978000559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 43.

The square root of 978000559 is about 31273.0004796470. Note that the first 3 decimals coincide. The cubic root of 978000559 is about 992.6124109238.

The spelling of 978000559 in words is "nine hundred seventy-eight million, five hundred fifty-nine", and thus it is an aban number.