12088409 has 4 divisors (see below), whose sum is σ = 12614016. Its totient is φ = 11562804.

The previous prime is 12088403. The next prime is 12088429. The reversal of 12088409 is 90488021.

It is a happy number.

12088409 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 12088409 - 2⁴ = 12088393 is a prime.

It is a super-2 number, since 2×12088409² = 292259264302562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12088403) 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, 262769 + ... + 262814.

It is an arithmetic number, because the mean of its divisors is an integer number (3153504).

Almost surely, 2^12088409 is an apocalyptic number.

It is an amenable number.

12088409 is a deficient number, since it is larger than the sum of its proper divisors (525607).

12088409 is an equidigital number, since it uses as much as digits as its factorization.

12088409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525606.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 12088409 is about 3476.8389378860. The cubic root of 12088409 is about 229.5037125038.

The spelling of 12088409 in words is "twelve million, eighty-eight thousand, four hundred nine".