47686 has 8 divisors (see below), whose sum is σ = 72504. Its totient is φ = 23520.

The previous prime is 47681. The next prime is 47699. The reversal of 47686 is 68674.

47686 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.

47686 is an undulating number in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47681) by changing a digit.

47686 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, 121 + ... + 331.

It is an arithmetic number, because the mean of its divisors is an integer number (9063).

2⁴⁷⁶⁸⁶ is an apocalyptic number.

47686 is a deficient number, since it is larger than the sum of its proper divisors (24818).

47686 is a wasteful number, since it uses less digits than its factorization.

47686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326.

The product of its digits is 8064, while the sum is 31.

The square root of 47686 is about 218.3712435281. The cubic root of 47686 is about 36.2629917761.

It can be divided in two parts, 4768 and 6, that added together give a palindrome (4774).

The spelling of 47686 in words is "forty-seven thousand, six hundred eighty-six".