11887904 has 48 divisors (see below), whose sum is σ = 27151488. Its totient is φ = 5018112.

The previous prime is 11887891. The next prime is 11887919. The reversal of 11887904 is 40978811.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15989 + ... + 16715.

It is an arithmetic number, because the mean of its divisors is an integer number (565656).

Almost surely, 2^11887904 is an apocalyptic number.

11887904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11887904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13575744).

11887904 is an abundant number, since it is smaller than the sum of its proper divisors (15263584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11887904 is an equidigital number, since it uses as much as digits as its factorization.

11887904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817 (or 809 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 11887904 is about 3447.8839887676. The cubic root of 11887904 is about 228.2277400237.

The spelling of 11887904 in words is "eleven million, eight hundred eighty-seven thousand, nine hundred four".