34139847 has 8 divisors (see below), whose sum is σ = 52022656. Its totient is φ = 19508472.

The previous prime is 34139803. The next prime is 34139851. The reversal of 34139847 is 74893143.

34139847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 34139847 - 2⁸ = 34139591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34139857) 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 in 7 ways as a sum of consecutive naturals, for example, 812833 + ... + 812874.

It is an arithmetic number, because the mean of its divisors is an integer number (6502832).

Almost surely, 2^34139847 is an apocalyptic number.

34139847 is a deficient number, since it is larger than the sum of its proper divisors (17882809).

34139847 is a wasteful number, since it uses less digits than its factorization.

34139847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625717.

The product of its digits is 72576, while the sum is 39.

The square root of 34139847 is about 5842.9313704681. The cubic root of 34139847 is about 324.4047391996.

The spelling of 34139847 in words is "thirty-four million, one hundred thirty-nine thousand, eight hundred forty-seven".