47239 has 4 divisors (see below), whose sum is σ = 47824. Its totient is φ = 46656.

The previous prime is 47237. The next prime is 47251. The reversal of 47239 is 93274.

47239 is nontrivially palindromic in base 9.

47239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

47239 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It is a 6-Lehmer number, since φ(47239) divides (47239-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 47239 - 2¹ = 47237 is a prime.

It is a Duffinian number.

47239 is an undulating number in base 9.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47237) 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, 147 + ... + 340.

It is an arithmetic number, because the mean of its divisors is an integer number (11956).

2⁴⁷²³⁹ is an apocalyptic number.

47239 is a deficient number, since it is larger than the sum of its proper divisors (585).

47239 is an equidigital number, since it uses as much as digits as its factorization.

47239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584.

The product of its digits is 1512, while the sum is 25.

The square root of 47239 is about 217.3453473162. The cubic root of 47239 is about 36.1493282883.

The spelling of 47239 in words is "forty-seven thousand, two hundred thirty-nine".