9478974771 has 48 divisors (see below), whose sum is σ = 17039443200. Its totient is φ = 4954509504.

The previous prime is 9478974763. The next prime is 9478974779. The reversal of 9478974771 is 1774798749.

9478974771 is a `hidden beast` number, since 9 + 4 + 78 + 97 + 477 + 1 = 666.

9478974771 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9478974763) and next prime (9478974779).

It is not a de Polignac number, because 9478974771 - 2³ = 9478974763 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 9478974699 and 9478974708.

It is not an unprimeable number, because it can be changed into a prime (9478974779) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101821 + ... + 171246.

It is an arithmetic number, because the mean of its divisors is an integer number (354988400).

Almost surely, 2^9478974771 is an apocalyptic number.

9478974771 is a deficient number, since it is larger than the sum of its proper divisors (7560468429).

9478974771 is a wasteful number, since it uses less digits than its factorization.

9478974771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273128 (or 273125 counting only the distinct ones).

The product of its digits is 24893568, while the sum is 63.

The square root of 9478974771 is about 97360.0265560769. The cubic root of 9478974771 is about 2116.3481966337.

The spelling of 9478974771 in words is "nine billion, four hundred seventy-eight million, nine hundred seventy-four thousand, seven hundred seventy-one".