47812872 has 16 divisors (see below), whose sum is σ = 119532240. Its totient is φ = 15937616.

The previous prime is 47812871. The next prime is 47812879. The reversal of 47812872 is 27821874.

It is a self number, because there is not a number n which added to its sum of digits gives 47812872.

It is not an unprimeable number, because it can be changed into a prime (47812871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 996078 + ... + 996125.

It is an arithmetic number, because the mean of its divisors is an integer number (7470765).

Almost surely, 2^47812872 is an apocalyptic number.

It is an amenable number.

47812872 is an abundant number, since it is smaller than the sum of its proper divisors (71719368).

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

47812872 is a wasteful number, since it uses less digits than its factorization.

47812872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992212 (or 1992208 counting only the distinct ones).

The product of its digits is 50176, while the sum is 39.

The square root of 47812872 is about 6914.6852422941. The cubic root of 47812872 is about 362.9512338773.

It can be divided in two parts, 47812 and 872, that added together give a palindrome (48684).

The spelling of 47812872 in words is "forty-seven million, eight hundred twelve thousand, eight hundred seventy-two".