47581872 has 40 divisors (see below), whose sum is σ = 132376944. Its totient is φ = 14640384.

The previous prime is 47581867. The next prime is 47581873. The reversal of 47581872 is 27818574.

It is not an unprimeable number, because it can be changed into a prime (47581873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37503 + ... + 38750.

Almost surely, 2^47581872 is an apocalyptic number.

It is an amenable number.

47581872 is an abundant number, since it is smaller than the sum of its proper divisors (84795072).

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

47581872 is a wasteful number, since it uses less digits than its factorization.

47581872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76277 (or 76271 counting only the distinct ones).

The product of its digits is 125440, while the sum is 42.

The square root of 47581872 is about 6897.9614379902. The cubic root of 47581872 is about 362.3657770216.

The spelling of 47581872 in words is "forty-seven million, five hundred eighty-one thousand, eight hundred seventy-two".