47781884 has 12 divisors (see below), whose sum is σ = 88019400. Its totient is φ = 22633488.

The previous prime is 47781869. The next prime is 47781887. The reversal of 47781884 is 48818774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47781887) 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, 314279 + ... + 314430.

It is an arithmetic number, because the mean of its divisors is an integer number (7334950).

Almost surely, 2^47781884 is an apocalyptic number.

It is an amenable number.

47781884 is a deficient number, since it is larger than the sum of its proper divisors (40237516).

47781884 is a wasteful number, since it uses less digits than its factorization.

47781884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628732 (or 628730 counting only the distinct ones).

The product of its digits is 401408, while the sum is 47.

The square root of 47781884 is about 6912.4441408231. Note that the first 3 decimals coincide. The cubic root of 47781884 is about 362.8728061580.

The spelling of 47781884 in words is "forty-seven million, seven hundred eighty-one thousand, eight hundred eighty-four".