47783220 has 24 divisors (see below), whose sum is σ = 133793184. Its totient is φ = 12742176.

The previous prime is 47783189. The next prime is 47783221. The reversal of 47783220 is 2238774.

47783220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×47783220² = 4566472227136800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47783221) 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 7 ways as a sum of consecutive naturals, for example, 398134 + ... + 398253.

It is an arithmetic number, because the mean of its divisors is an integer number (5574716).

Almost surely, 2^47783220 is an apocalyptic number.

It is an amenable number.

47783220 is an abundant number, since it is smaller than the sum of its proper divisors (86009964).

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

47783220 is a wasteful number, since it uses less digits than its factorization.

47783220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796399 (or 796397 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 47783220 is about 6912.5407774566. The cubic root of 47783220 is about 362.8761881480.

The spelling of 47783220 in words is "forty-seven million, seven hundred eighty-three thousand, two hundred twenty".