9889472479 has 2 divisors, whose sum is σ = 9889472480. Its totient is φ = 9889472478.

The previous prime is 9889472423. The next prime is 9889472503. The reversal of 9889472479 is 9742749889.

It is a strong prime.

It is an emirp because it is prime and its reverse (9742749889) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9889472479 - 2¹⁵ = 9889439711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9889472419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4944736239 + 4944736240.

It is an arithmetic number, because the mean of its divisors is an integer number (4944736240).

Almost surely, 2^9889472479 is an apocalyptic number.

9889472479 is a deficient number, since it is larger than the sum of its proper divisors (1).

9889472479 is an equidigital number, since it uses as much as digits as its factorization.

9889472479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73156608, while the sum is 67.

The square root of 9889472479 is about 99445.8268556303. The cubic root of 9889472479 is about 2146.4677879577.

The spelling of 9889472479 in words is "nine billion, eight hundred eighty-nine million, four hundred seventy-two thousand, four hundred seventy-nine".