47788618 has 16 divisors (see below), whose sum is σ = 74954880. Its totient is φ = 22808016.

The previous prime is 47788597. The next prime is 47788627. The reversal of 47788618 is 81688774.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32728 + ... + 34156.

It is an arithmetic number, because the mean of its divisors is an integer number (4684680).

Almost surely, 2^47788618 is an apocalyptic number.

47788618 is a deficient number, since it is larger than the sum of its proper divisors (27166262).

47788618 is a wasteful number, since it uses less digits than its factorization.

47788618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181.

The product of its digits is 602112, while the sum is 49.

The square root of 47788618 is about 6912.9312162063. The cubic root of 47788618 is about 362.8898521630.

The spelling of 47788618 in words is "forty-seven million, seven hundred eighty-eight thousand, six hundred eighteen".