11875909 has 4 divisors (see below), whose sum is σ = 11886400. Its totient is φ = 11865420.

The previous prime is 11875901. The next prime is 11875921. The reversal of 11875909 is 90957811.

It is a happy number.

11875909 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11875909 - 2³ = 11875901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11875901) 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, 3309 + ... + 5890.

It is an arithmetic number, because the mean of its divisors is an integer number (2971600).

Almost surely, 2^11875909 is an apocalyptic number.

It is an amenable number.

11875909 is a deficient number, since it is larger than the sum of its proper divisors (10491).

11875909 is an equidigital number, since it uses as much as digits as its factorization.

11875909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10490.

The product of its (nonzero) digits is 22680, while the sum is 40.

The square root of 11875909 is about 3446.1440770809. The cubic root of 11875909 is about 228.1509529240.

The spelling of 11875909 in words is "eleven million, eight hundred seventy-five thousand, nine hundred nine".