47842 has 8 divisors (see below), whose sum is σ = 75600. Its totient is φ = 22644.

The previous prime is 47837. The next prime is 47843. The reversal of 47842 is 24874.

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

It is not an unprimeable number, because it can be changed into a prime (47843) by changing a digit.

47842 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592 + ... + 667.

It is an arithmetic number, because the mean of its divisors is an integer number (9450).

2⁴⁷⁸⁴² is an apocalyptic number.

47842 is a deficient number, since it is larger than the sum of its proper divisors (27758).

47842 is a wasteful number, since it uses less digits than its factorization.

47842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280.

The product of its digits is 1792, while the sum is 25.

The square root of 47842 is about 218.7281417651. The cubic root of 47842 is about 36.3024923221.

The spelling of 47842 in words is "forty-seven thousand, eight hundred forty-two".