47447982 has 24 divisors (see below), whose sum is σ = 103825800. Its totient is φ = 15658800.

The previous prime is 47447971. The next prime is 47447987. The reversal of 47447982 is 28974474.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47447987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11232 + ... + 14867.

It is an arithmetic number, because the mean of its divisors is an integer number (4326075).

Almost surely, 2^47447982 is an apocalyptic number.

47447982 is an abundant number, since it is smaller than the sum of its proper divisors (56377818).

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

47447982 is a wasteful number, since it uses less digits than its factorization.

47447982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26208 (or 26205 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 47447982 is about 6888.2495599390. The cubic root of 47447982 is about 362.0255723009.

The spelling of 47447982 in words is "forty-seven million, four hundred forty-seven thousand, nine hundred eighty-two".