47820984 has 32 divisors (see below), whose sum is σ = 119733120. Its totient is φ = 15916256.

The previous prime is 47820977. The next prime is 47820989. The reversal of 47820984 is 48902874.

47820984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47820989) 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, 22579 + ... + 24605.

It is an arithmetic number, because the mean of its divisors is an integer number (3741660).

Almost surely, 2^47820984 is an apocalyptic number.

It is an amenable number.

47820984 is an abundant number, since it is smaller than the sum of its proper divisors (71912136).

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

47820984 is a wasteful number, since it uses less digits than its factorization.

47820984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019 (or 3015 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 47820984 is about 6915.2717950924. The cubic root of 47820984 is about 362.9717589911.

The spelling of 47820984 in words is "forty-seven million, eight hundred twenty thousand, nine hundred eighty-four".