34239871 has 2 divisors, whose sum is σ = 34239872. Its totient is φ = 34239870.

The previous prime is 34239869. The next prime is 34239889. The reversal of 34239871 is 17893243.

It is a weak prime.

It is an emirp because it is prime and its reverse (17893243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34239871 - 2¹ = 34239869 is a prime.

Together with 34239869, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34239871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34239371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17119935 + 17119936.

It is an arithmetic number, because the mean of its divisors is an integer number (17119936).

Almost surely, 2^34239871 is an apocalyptic number.

34239871 is a deficient number, since it is larger than the sum of its proper divisors (1).

34239871 is an equidigital number, since it uses as much as digits as its factorization.

34239871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 34239871 is about 5851.4845124977. The cubic root of 34239871 is about 324.7212473726.

The spelling of 34239871 in words is "thirty-four million, two hundred thirty-nine thousand, eight hundred seventy-one".