34129727 has 4 divisors (see below), whose sum is σ = 36137376. Its totient is φ = 32122080.

The previous prime is 34129717. The next prime is 34129747. The reversal of 34129727 is 72792143.

34129727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72792143 = 47 ⋅1548769.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34129727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34129717) 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 3 ways as a sum of consecutive naturals, for example, 1003799 + ... + 1003832.

It is an arithmetic number, because the mean of its divisors is an integer number (9034344).

Almost surely, 2^34129727 is an apocalyptic number.

34129727 is a deficient number, since it is larger than the sum of its proper divisors (2007649).

34129727 is a wasteful number, since it uses less digits than its factorization.

34129727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007648.

The product of its digits is 21168, while the sum is 35.

The square root of 34129727 is about 5842.0653026135. The cubic root of 34129727 is about 324.3726818367.

The spelling of 34129727 in words is "thirty-four million, one hundred twenty-nine thousand, seven hundred twenty-seven".