47906 has 8 divisors (see below), whose sum is σ = 76140. Its totient is φ = 22528.

The previous prime is 47903. The next prime is 47911. The reversal of 47906 is 60974.

47906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 46225 + 1681 = 215^2 + 41^2 .

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

It is a Curzon number.

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (47903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671 + ... + 738.

2⁴⁷⁹⁰⁶ is an apocalyptic number.

47906 is a deficient number, since it is larger than the sum of its proper divisors (28234).

47906 is a wasteful number, since it uses less digits than its factorization.

47906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 47906 is about 218.8743932030. The cubic root of 47906 is about 36.3186728347.

The spelling of 47906 in words is "forty-seven thousand, nine hundred six".