47821382 has 8 divisors (see below), whose sum is σ = 81979536. Its totient is φ = 20494872.

The previous prime is 47821373. The next prime is 47821387. The reversal of 47821382 is 28312874.

47821382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47821387) 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 3 ways as a sum of consecutive naturals, for example, 1707893 + ... + 1707920.

It is an arithmetic number, because the mean of its divisors is an integer number (10247442).

Almost surely, 2^47821382 is an apocalyptic number.

47821382 is a deficient number, since it is larger than the sum of its proper divisors (34158154).

47821382 is a wasteful number, since it uses less digits than its factorization.

47821382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3415822.

The product of its digits is 21504, while the sum is 35.

The square root of 47821382 is about 6915.3005719202. The cubic root of 47821382 is about 362.9727659574.

The spelling of 47821382 in words is "forty-seven million, eight hundred twenty-one thousand, three hundred eighty-two".