47855239 has 2 divisors, whose sum is σ = 47855240. Its totient is φ = 47855238.

The previous prime is 47855233. The next prime is 47855261. The reversal of 47855239 is 93255874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47855239 - 2³ = 47855231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47855195 and 47855204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47855231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23927619 + 23927620.

It is an arithmetic number, because the mean of its divisors is an integer number (23927620).

Almost surely, 2^47855239 is an apocalyptic number.

47855239 is a deficient number, since it is larger than the sum of its proper divisors (1).

47855239 is an equidigital number, since it uses as much as digits as its factorization.

47855239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The square root of 47855239 is about 6917.7481162586. The cubic root of 47855239 is about 363.0584059603.

The spelling of 47855239 in words is "forty-seven million, eight hundred fifty-five thousand, two hundred thirty-nine".