8073809 has 4 divisors (see below), whose sum is σ = 8261616. Its totient is φ = 7886004.

The previous prime is 8073799. The next prime is 8073811. The reversal of 8073809 is 9083708.

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 a de Polignac number, because none of the positive numbers 2^k-8073809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8073829) 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, 93839 + ... + 93924.

It is an arithmetic number, because the mean of its divisors is an integer number (2065404).

Almost surely, 2^8073809 is an apocalyptic number.

It is an amenable number.

8073809 is a deficient number, since it is larger than the sum of its proper divisors (187807).

8073809 is a wasteful number, since it uses less digits than its factorization.

8073809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187806.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 8073809 is about 2841.4448789304. Note that the first 3 decimals coincide. The cubic root of 8073809 is about 200.6131930500.

The spelling of 8073809 in words is "eight million, seventy-three thousand, eight hundred nine".