1029978563 has 2 divisors, whose sum is σ = 1029978564. Its totient is φ = 1029978562.

The previous prime is 1029978557. The next prime is 1029978629. The reversal of 1029978563 is 3658799201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1029978563 - 2¹⁴ = 1029962179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1029978263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514989281 + 514989282.

It is an arithmetic number, because the mean of its divisors is an integer number (514989282).

Almost surely, 2^1029978563 is an apocalyptic number.

1029978563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1029978563 is an equidigital number, since it uses as much as digits as its factorization.

1029978563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 1029978563 is about 32093.2790939162. The cubic root of 1029978563 is about 1009.8946277679.

The spelling of 1029978563 in words is "one billion, twenty-nine million, nine hundred seventy-eight thousand, five hundred sixty-three".