47534239 has 2 divisors, whose sum is σ = 47534240. Its totient is φ = 47534238.

The previous prime is 47534237. The next prime is 47534243. The reversal of 47534239 is 93243574.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47534239 - 2¹ = 47534237 is a prime.

Together with 47534237, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 47534198 and 47534207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47534231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23767119 + 23767120.

It is an arithmetic number, because the mean of its divisors is an integer number (23767120).

Almost surely, 2^47534239 is an apocalyptic number.

47534239 is a deficient number, since it is larger than the sum of its proper divisors (1).

47534239 is an equidigital number, since it uses as much as digits as its factorization.

47534239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 37.

The square root of 47534239 is about 6894.5078867168. The cubic root of 47534239 is about 362.2448182668.

The spelling of 47534239 in words is "forty-seven million, five hundred thirty-four thousand, two hundred thirty-nine".