11880909 has 48 divisors (see below), whose sum is σ = 19730880. Its totient is φ = 6842880.

The previous prime is 11880899. The next prime is 11880919. The reversal of 11880909 is 90908811.

It is an interprime number because it is at equal distance from previous prime (11880899) and next prime (11880919).

It is not a de Polignac number, because 11880909 - 2⁴ = 11880893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11880919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 177294 + ... + 177360.

It is an arithmetic number, because the mean of its divisors is an integer number (411060).

Almost surely, 2^11880909 is an apocalyptic number.

11880909 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11880909 is a deficient number, since it is larger than the sum of its proper divisors (7849971).

11880909 is a wasteful number, since it uses less digits than its factorization.

11880909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 11880909 is about 3446.8694492249. The cubic root of 11880909 is about 228.1829671669.

The spelling of 11880909 in words is "eleven million, eight hundred eighty thousand, nine hundred nine".