47786220 has 48 divisors (see below), whose sum is σ = 148669920. Its totient is φ = 12742848.

The previous prime is 47786191. The next prime is 47786227. The reversal of 47786220 is 2268774.

47786220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (47786227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43707 + ... + 44786.

It is an arithmetic number, because the mean of its divisors is an integer number (3097290).

Almost surely, 2^47786220 is an apocalyptic number.

It is an amenable number.

47786220 is an abundant number, since it is smaller than the sum of its proper divisors (100883700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47786220 is a wasteful number, since it uses less digits than its factorization.

47786220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88511 (or 88503 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 47786220 is about 6912.7577709623. The cubic root of 47786220 is about 362.8837822070.

The spelling of 47786220 in words is "forty-seven million, seven hundred eighty-six thousand, two hundred twenty".