9427047878 has 4 divisors (see below), whose sum is σ = 14140571820. Its totient is φ = 4713523938.

The previous prime is 9427047863. The next prime is 9427047913. The reversal of 9427047878 is 8787407249.

It is a happy number.

9427047878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8787407249 = 15331 ⋅573179.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2356761968 + ... + 2356761971.

It is an arithmetic number, because the mean of its divisors is an integer number (3535142955).

Almost surely, 2^9427047878 is an apocalyptic number.

9427047878 is a deficient number, since it is larger than the sum of its proper divisors (4713523942).

9427047878 is a wasteful number, since it uses less digits than its factorization.

9427047878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4713523941.

The product of its (nonzero) digits is 6322176, while the sum is 56.

The square root of 9427047878 is about 97092.9857301752. The cubic root of 9427047878 is about 2112.4765869188.

The spelling of 9427047878 in words is "nine billion, four hundred twenty-seven million, forty-seven thousand, eight hundred seventy-eight".