4080809 has 4 divisors (see below), whose sum is σ = 4212480. Its totient is φ = 3949140.

The previous prime is 4080803. The next prime is 4080827. The reversal of 4080809 is 9080804.

4080809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4080809 - 2¹² = 4076713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4080803) 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, 65789 + ... + 65850.

It is an arithmetic number, because the mean of its divisors is an integer number (1053120).

Almost surely, 2^4080809 is an apocalyptic number.

It is an amenable number.

4080809 is a deficient number, since it is larger than the sum of its proper divisors (131671).

4080809 is a wasteful number, since it uses less digits than its factorization.

4080809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131670.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 4080809 is about 2020.1012350870. The cubic root of 4080809 is about 159.8019554868.

The spelling of 4080809 in words is "four million, eighty thousand, eight hundred nine".