12067809 has 16 divisors (see below), whose sum is σ = 17798592. Its totient is φ = 7224768.

The previous prime is 12067787. The next prime is 12067823. The reversal of 12067809 is 90876021.

It is not a de Polignac number, because 12067809 - 2⁷ = 12067681 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12067809.

It is not an unprimeable number, because it can be changed into a prime (12067859) 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 15 ways as a sum of consecutive naturals, for example, 2739 + ... + 5624.

It is an arithmetic number, because the mean of its divisors is an integer number (1112412).

Almost surely, 2^12067809 is an apocalyptic number.

It is an amenable number.

12067809 is a deficient number, since it is larger than the sum of its proper divisors (5730783).

12067809 is a wasteful number, since it uses less digits than its factorization.

12067809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8416.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 12067809 is about 3473.8752136483. The cubic root of 12067809 is about 229.3732717216.

The spelling of 12067809 in words is "twelve million, sixty-seven thousand, eight hundred nine".