34681729 has 4 divisors (see below), whose sum is σ = 35000020. Its totient is φ = 34363440.

The previous prime is 34681727. The next prime is 34681747. The reversal of 34681729 is 92718643.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19158129 + 15523600 = 4377^2 + 3940^2 .

It is a cyclic number.

It is not a de Polignac number, because 34681729 - 2¹ = 34681727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34681691 and 34681700.

It is not an unprimeable number, because it can be changed into a prime (34681727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158982 + ... + 159199.

It is an arithmetic number, because the mean of its divisors is an integer number (8750005).

Almost surely, 2^34681729 is an apocalyptic number.

It is an amenable number.

34681729 is a deficient number, since it is larger than the sum of its proper divisors (318291).

34681729 is a wasteful number, since it uses less digits than its factorization.

34681729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318290.

The product of its digits is 72576, while the sum is 40.

The square root of 34681729 is about 5889.1195437009. The cubic root of 34681729 is about 326.1121002816.

The spelling of 34681729 in words is "thirty-four million, six hundred eighty-one thousand, seven hundred twenty-nine".