47705 has 16 divisors (see below), whose sum is σ = 69120. Its totient is φ = 30912.

The previous prime is 47701. The next prime is 47711. The reversal of 47705 is 50774.

It is a happy number.

It is not a de Polignac number, because 47705 - 2² = 47701 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (47701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 992 + ... + 1038.

It is an arithmetic number, because the mean of its divisors is an integer number (4320).

2⁴⁷⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

47705 is a deficient number, since it is larger than the sum of its proper divisors (21415).

47705 is a wasteful number, since it uses less digits than its factorization.

47705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88.

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 47705 is about 218.4147430921. The cubic root of 47705 is about 36.2678073429.

The spelling of 47705 in words is "forty-seven thousand, seven hundred five".