47821884 has 96 divisors (see below), whose sum is σ = 130781952. Its totient is φ = 13440000.

The previous prime is 47821883. The next prime is 47821909. The reversal of 47821884 is 48812874.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47821883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226539 + ... + 226749.

It is an arithmetic number, because the mean of its divisors is an integer number (1362312).

Almost surely, 2^47821884 is an apocalyptic number.

47821884 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47821884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65390976).

47821884 is an abundant number, since it is smaller than the sum of its proper divisors (82960068).

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

47821884 is a wasteful number, since it uses less digits than its factorization.

47821884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 345 counting only the distinct ones).

The product of its digits is 114688, while the sum is 42.

The square root of 47821884 is about 6915.3368681504. The cubic root of 47821884 is about 362.9740360426.

It can be divided in two parts, 4782 and 1884, that added together give a palindrome (6666).

The spelling of 47821884 in words is "forty-seven million, eight hundred twenty-one thousand, eight hundred eighty-four".