11913808 has 20 divisors (see below), whose sum is σ = 23302080. Its totient is φ = 5900384.

The previous prime is 11913799. The next prime is 11913823. The reversal of 11913808 is 80831911.

It is a self number, because there is not a number n which added to its sum of digits gives 11913808.

It is a congruent number.

It is an unprimeable number.

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, 1768 + ... + 5191.

It is an arithmetic number, because the mean of its divisors is an integer number (1165104).

Almost surely, 2^11913808 is an apocalyptic number.

It is an amenable number.

11913808 is a deficient number, since it is larger than the sum of its proper divisors (11388272).

11913808 is a wasteful number, since it uses less digits than its factorization.

11913808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7074 (or 7068 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 11913808 is about 3451.6384515184. The cubic root of 11913808 is about 228.3933908240.

It can be divided in two parts, 11913 and 808, that added together give a palindrome (12721).

The spelling of 11913808 in words is "eleven million, nine hundred thirteen thousand, eight hundred eight".