11811808 has 12 divisors (see below), whose sum is σ = 23254560. Its totient is φ = 5905888.

The previous prime is 11811797. The next prime is 11811847. The reversal of 11811808 is 80811811.

11811808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184528 + ... + 184591.

It is an arithmetic number, because the mean of its divisors is an integer number (1937880).

Almost surely, 2^11811808 is an apocalyptic number.

It is an amenable number.

11811808 is a deficient number, since it is larger than the sum of its proper divisors (11442752).

11811808 is an equidigital number, since it uses as much as digits as its factorization.

11811808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369129 (or 369121 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 28.

The square root of 11811808 is about 3436.8310985558. The cubic root of 11811808 is about 227.7397255666.

The spelling of 11811808 in words is "eleven million, eight hundred eleven thousand, eight hundred eight".