47987860 has 24 divisors (see below), whose sum is σ = 100910376. Its totient is φ = 19169280.

The previous prime is 47987857. The next prime is 47987869. The reversal of 47987860 is 6878974.

47987860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7817616 + 40170244 = 2796^2 + 6338^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47987869) 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, 22020 + ... + 24100.

It is an arithmetic number, because the mean of its divisors is an integer number (4204599).

Almost surely, 2^47987860 is an apocalyptic number.

It is an amenable number.

47987860 is an abundant number, since it is smaller than the sum of its proper divisors (52922516).

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

47987860 is a wasteful number, since it uses less digits than its factorization.

47987860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3243 (or 3241 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 47987860 is about 6927.3270458381. The cubic root of 47987860 is about 363.3934773108.

The spelling of 47987860 in words is "forty-seven million, nine hundred eighty-seven thousand, eight hundred sixty".