47787580 has 12 divisors (see below), whose sum is σ = 100353960. Its totient is φ = 19115024.

The previous prime is 47787569. The next prime is 47787599. The reversal of 47787580 is 8578774.

It is a self number, because there is not a number n which added to its sum of digits gives 47787580.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1194670 + ... + 1194709.

It is an arithmetic number, because the mean of its divisors is an integer number (8362830).

Almost surely, 2^47787580 is an apocalyptic number.

It is an amenable number.

47787580 is an abundant number, since it is smaller than the sum of its proper divisors (52566380).

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

47787580 is a wasteful number, since it uses less digits than its factorization.

47787580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389388 (or 2389386 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 46.

The square root of 47787580 is about 6912.8561391078. The cubic root of 47787580 is about 362.8872247424.

The spelling of 47787580 in words is "forty-seven million, seven hundred eighty-seven thousand, five hundred eighty".