979517563 has 2 divisors, whose sum is σ = 979517564. Its totient is φ = 979517562.

The previous prime is 979517557. The next prime is 979517573. The reversal of 979517563 is 365715979.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (365715979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 979517563 - 2¹⁷ = 979386491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 979517563.

It is not a weakly prime, because it can be changed into another prime (979517503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489758781 + 489758782.

It is an arithmetic number, because the mean of its divisors is an integer number (489758782).

Almost surely, 2^979517563 is an apocalyptic number.

979517563 is a deficient number, since it is larger than the sum of its proper divisors (1).

979517563 is an equidigital number, since it uses as much as digits as its factorization.

979517563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1786050, while the sum is 52.

The square root of 979517563 is about 31297.2452941149. The cubic root of 979517563 is about 993.1253687447.

The spelling of 979517563 in words is "nine hundred seventy-nine million, five hundred seventeen thousand, five hundred sixty-three".