47909860 has 24 divisors (see below), whose sum is σ = 101538360. Its totient is φ = 18987264.

The previous prime is 47909843. The next prime is 47909863. The reversal of 47909860 is 6890974.

It can be written as a sum of positive squares in 4 ways, for example, as 7485696 + 40424164 = 2736^2 + 6358^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (47909863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8809 + ... + 13168.

It is an arithmetic number, because the mean of its divisors is an integer number (4230765).

Almost surely, 2^47909860 is an apocalyptic number.

It is an amenable number.

47909860 is an abundant number, since it is smaller than the sum of its proper divisors (53628500).

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

47909860 is a wasteful number, since it uses less digits than its factorization.

47909860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22095 (or 22093 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 47909860 is about 6921.6948791463. The cubic root of 47909860 is about 363.1964826100.

The spelling of 47909860 in words is "forty-seven million, nine hundred nine thousand, eight hundred sixty".