47909680 has 80 divisors (see below), whose sum is σ = 137116224. Its totient is φ = 15160320.

The previous prime is 47909671. The next prime is 47909699. The reversal of 47909680 is 8690974.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3990 + ... + 10570.

Almost surely, 2^47909680 is an apocalyptic number.

47909680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47909680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68558112).

47909680 is an abundant number, since it is smaller than the sum of its proper divisors (89206544).

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

47909680 is a wasteful number, since it uses less digits than its factorization.

47909680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6614 (or 6608 counting only the distinct ones).

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

The square root of 47909680 is about 6921.6818765384. The cubic root of 47909680 is about 363.1960277597.

The spelling of 47909680 in words is "forty-seven million, nine hundred nine thousand, six hundred eighty".