47868820 has 48 divisors (see below), whose sum is σ = 103158720. Its totient is φ = 18653184.

The previous prime is 47868811. The next prime is 47868823. The reversal of 47868820 is 2886874.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47868823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186132 + ... + 186388.

It is an arithmetic number, because the mean of its divisors is an integer number (2149140).

Almost surely, 2^47868820 is an apocalyptic number.

It is an amenable number.

47868820 is an abundant number, since it is smaller than the sum of its proper divisors (55289900).

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

47868820 is a wasteful number, since it uses less digits than its factorization.

47868820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 47868820 is about 6918.7296521833. The cubic root of 47868820 is about 363.0927472359.

The spelling of 47868820 in words is "forty-seven million, eight hundred sixty-eight thousand, eight hundred twenty".