47870784 has 112 divisors (see below), whose sum is σ = 151627840. Its totient is φ = 14722560.

The previous prime is 47870783. The next prime is 47870807. The reversal of 47870784 is 48707874.

It is a super-2 number, since 2×47870784² = 4583223921549312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47870783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21399 + ... + 23529.

It is an arithmetic number, because the mean of its divisors is an integer number (1353820).

Almost surely, 2^47870784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47870784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75813920).

47870784 is an abundant number, since it is smaller than the sum of its proper divisors (103757056).

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

47870784 is a wasteful number, since it uses less digits than its factorization.

47870784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165 (or 2149 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 45.

The square root of 47870784 is about 6918.8715842975. The cubic root of 47870784 is about 363.0977129206.

The spelling of 47870784 in words is "forty-seven million, eight hundred seventy thousand, seven hundred eighty-four".