8064509 has 4 divisors (see below), whose sum is σ = 8070816. Its totient is φ = 8058204.

The previous prime is 8064499. The next prime is 8064517. The reversal of 8064509 is 9054608.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8064509 - 2²⁰ = 7015933 is a prime.

It is a super-2 number, since 2×8064509² = 130072610822162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8064809) 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, 479 + ... + 4044.

It is an arithmetic number, because the mean of its divisors is an integer number (2017704).

Almost surely, 2^8064509 is an apocalyptic number.

It is an amenable number.

8064509 is a deficient number, since it is larger than the sum of its proper divisors (6307).

8064509 is a wasteful number, since it uses less digits than its factorization.

8064509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6306.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 8064509 is about 2839.8079160394. The cubic root of 8064509 is about 200.5361365040.

Subtracting 8064509 from its reverse (9054608), we obtain a palindrome (990099).

The spelling of 8064509 in words is "eight million, sixty-four thousand, five hundred nine".