8020609 has 4 divisors (see below), whose sum is σ = 8028160. Its totient is φ = 8013060.

The previous prime is 8020589. The next prime is 8020631. The reversal of 8020609 is 9060208.

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 8020609 - 2⁵ = 8020577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8020669) 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, 1857 + ... + 4414.

It is an arithmetic number, because the mean of its divisors is an integer number (2007040).

Almost surely, 2^8020609 is an apocalyptic number.

It is an amenable number.

8020609 is a deficient number, since it is larger than the sum of its proper divisors (7551).

8020609 is a wasteful number, since it uses less digits than its factorization.

8020609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7550.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 8020609 is about 2832.0679723481. The cubic root of 8020609 is about 200.1715944014.

The spelling of 8020609 in words is "eight million, twenty thousand, six hundred nine".