34568521 has 8 divisors (see below), whose sum is σ = 37332680. Its totient is φ = 31819392.

The previous prime is 34568509. The next prime is 34568539. The reversal of 34568521 is 12586543.

34568521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2758921 + 31809600 = 1661^2 + 5640^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 34568521 - 2⁷ = 34568393 is a prime.

It is the 5880-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34568591) by changing a digit.

It is a nontrivial repunit in base 5879.

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, 1285 + ... + 8413.

It is an arithmetic number, because the mean of its divisors is an integer number (4666585).

Almost surely, 2^34568521 is an apocalyptic number.

It is an amenable number.

34568521 is a deficient number, since it is larger than the sum of its proper divisors (2764159).

34568521 is a wasteful number, since it uses less digits than its factorization.

34568521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7515.

The product of its digits is 28800, while the sum is 34.

The square root of 34568521 is about 5879.5000637809. The cubic root of 34568521 is about 325.7568821070.

The spelling of 34568521 in words is "thirty-four million, five hundred sixty-eight thousand, five hundred twenty-one".