11691908 has 12 divisors (see below), whose sum is σ = 20896512. Its totient is φ = 5721480.

The previous prime is 11691907. The next prime is 11691917. The reversal of 11691908 is 80919611.

It is not an unprimeable number, because it can be changed into a prime (11691907) 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 3 ways as a sum of consecutive naturals, for example, 30908 + ... + 31283.

It is an arithmetic number, because the mean of its divisors is an integer number (1741376).

Almost surely, 2^11691908 is an apocalyptic number.

It is an amenable number.

11691908 is a deficient number, since it is larger than the sum of its proper divisors (9204604).

11691908 is a wasteful number, since it uses less digits than its factorization.

11691908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62242 (or 62240 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 11691908 is about 3419.3432117879. The cubic root of 11691908 is about 226.9665187670.

The spelling of 11691908 in words is "eleven million, six hundred ninety-one thousand, nine hundred eight".