11909875 has 8 divisors (see below), whose sum is σ = 14863680. Its totient is φ = 9527800.

The previous prime is 11909873. The next prime is 11909879. The reversal of 11909875 is 57890911.

It is a happy number.

It is not a de Polignac number, because 11909875 - 2¹ = 11909873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11909873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47515 + ... + 47764.

It is an arithmetic number, because the mean of its divisors is an integer number (1857960).

Almost surely, 2^11909875 is an apocalyptic number.

11909875 is a deficient number, since it is larger than the sum of its proper divisors (2953805).

11909875 is an frugal number, since it uses more digits than its factorization.

11909875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95294 (or 95284 counting only the distinct ones).

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

The square root of 11909875 is about 3451.0686750628. The cubic root of 11909875 is about 228.3682555616.

The spelling of 11909875 in words is "eleven million, nine hundred nine thousand, eight hundred seventy-five".