47086439 has 2 divisors, whose sum is σ = 47086440. Its totient is φ = 47086438.

The previous prime is 47086423. The next prime is 47086471. The reversal of 47086439 is 93468074.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47086439 - 2⁴ = 47086423 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 47086396 and 47086405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47086499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23543219 + 23543220.

It is an arithmetic number, because the mean of its divisors is an integer number (23543220).

Almost surely, 2^47086439 is an apocalyptic number.

47086439 is a deficient number, since it is larger than the sum of its proper divisors (1).

47086439 is an equidigital number, since it uses as much as digits as its factorization.

47086439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 47086439 is about 6861.9559165008. The cubic root of 47086439 is about 361.1037089204.

The spelling of 47086439 in words is "forty-seven million, eighty-six thousand, four hundred thirty-nine".