47878584 has 32 divisors (see below), whose sum is σ = 128904720. Its totient is φ = 14731776.

The previous prime is 47878573. The next prime is 47878591. The reversal of 47878584 is 48587874.

47878584 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 76417 + ... + 77040.

Almost surely, 2^47878584 is an apocalyptic number.

It is an amenable number.

47878584 is an abundant number, since it is smaller than the sum of its proper divisors (81026136).

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

47878584 is a wasteful number, since it uses less digits than its factorization.

47878584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153479 (or 153475 counting only the distinct ones).

The product of its digits is 2007040, while the sum is 51.

The square root of 47878584 is about 6919.4352370696. The cubic root of 47878584 is about 363.1174327310.

The spelling of 47878584 in words is "forty-seven million, eight hundred seventy-eight thousand, five hundred eighty-four".