978000563 has 2 divisors, whose sum is σ = 978000564. Its totient is φ = 978000562.

The previous prime is 978000559. The next prime is 978000577. The reversal of 978000563 is 365000879.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 978000563 - 2² = 978000559 is a prime.

It is not a weakly prime, because it can be changed into another prime (978000523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489000281 + 489000282.

It is an arithmetic number, because the mean of its divisors is an integer number (489000282).

Almost surely, 2^978000563 is an apocalyptic number.

978000563 is a deficient number, since it is larger than the sum of its proper divisors (1).

978000563 is an equidigital number, since it uses as much as digits as its factorization.

978000563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 978000563 is about 31273.0005435999. Note that the first 3 decimals coincide. The cubic root of 978000563 is about 992.6124122771.

The spelling of 978000563 in words is "nine hundred seventy-eight million, five hundred sixty-three", and thus it is an aban number.