8064521 has 4 divisors (see below), whose sum is σ = 8252112. Its totient is φ = 7876932.

The previous prime is 8064517. The next prime is 8064527. The reversal of 8064521 is 1254608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8064521 - 2² = 8064517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8064527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93731 + ... + 93816.

It is an arithmetic number, because the mean of its divisors is an integer number (2063028).

Almost surely, 2^8064521 is an apocalyptic number.

It is an amenable number.

8064521 is a deficient number, since it is larger than the sum of its proper divisors (187591).

8064521 is a wasteful number, since it uses less digits than its factorization.

8064521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187590.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 8064521 is about 2839.8100288576. The cubic root of 8064521 is about 200.5362359700.

The spelling of 8064521 in words is "eight million, sixty-four thousand, five hundred twenty-one".