47817882 has 48 divisors (see below), whose sum is σ = 119351232. Its totient is φ = 13553280.

The previous prime is 47817859. The next prime is 47817883. The reversal of 47817882 is 28871874.

47817882 is a `hidden beast` number, since 478 + 178 + 8 + 2 = 666.

47817882 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (47817883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15058 + ... + 17954.

It is an arithmetic number, because the mean of its divisors is an integer number (2486484).

Almost surely, 2^47817882 is an apocalyptic number.

47817882 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 47817882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59675616).

47817882 is an abundant number, since it is smaller than the sum of its proper divisors (71533350).

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

47817882 is a wasteful number, since it uses less digits than its factorization.

47817882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3043 (or 3040 counting only the distinct ones).

The product of its digits is 200704, while the sum is 45.

The square root of 47817882 is about 6915.0475052598. The cubic root of 47817882 is about 362.9639105345.

The spelling of 47817882 in words is "forty-seven million, eight hundred seventeen thousand, eight hundred eighty-two".