80808009 has 4 divisors (see below), whose sum is σ = 107744016. Its totient is φ = 53872004.

The previous prime is 80808001. The next prime is 80808017. The reversal of 80808009 is 90080808.

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 an interprime number because it is at equal distance from previous prime (80808001) and next prime (80808017).

It is a cyclic number.

It is not a de Polignac number, because 80808009 - 2³ = 80808001 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80808001) 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, 13467999 + ... + 13468004.

It is an arithmetic number, because the mean of its divisors is an integer number (26936004).

Almost surely, 2^80808009 is an apocalyptic number.

It is an amenable number.

80808009 is a deficient number, since it is larger than the sum of its proper divisors (26936007).

80808009 is a wasteful number, since it uses less digits than its factorization.

80808009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26936006.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 80808009 is about 8989.3275054367. The cubic root of 80808009 is about 432.3327501047.

The spelling of 80808009 in words is "eighty million, eight hundred eight thousand, nine".