8939471 has 2 divisors, whose sum is σ = 8939472. Its totient is φ = 8939470.

The previous prime is 8939431. The next prime is 8939521. The reversal of 8939471 is 1749398.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8939471 - 2⁶ = 8939407 is a prime.

It is a super-3 number, since 3×8939471³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8939431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4469735 + 4469736.

It is an arithmetic number, because the mean of its divisors is an integer number (4469736).

Almost surely, 2^8939471 is an apocalyptic number.

8939471 is a deficient number, since it is larger than the sum of its proper divisors (1).

8939471 is an equidigital number, since it uses as much as digits as its factorization.

8939471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 41.

The square root of 8939471 is about 2989.8948142033. The cubic root of 8939471 is about 207.5410167138.

The spelling of 8939471 in words is "eight million, nine hundred thirty-nine thousand, four hundred seventy-one".