11728904 has 16 divisors (see below), whose sum is σ = 23991120. Its totient is φ = 5331280.

The previous prime is 11728903. The next prime is 11728907. The reversal of 11728904 is 40982711.

It is not an unprimeable number, because it can be changed into a prime (11728903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66554 + ... + 66729.

It is an arithmetic number, because the mean of its divisors is an integer number (1499445).

Almost surely, 2^11728904 is an apocalyptic number.

It is an amenable number.

11728904 is an abundant number, since it is smaller than the sum of its proper divisors (12262216).

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

11728904 is a wasteful number, since it uses less digits than its factorization.

11728904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133300 (or 133296 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 11728904 is about 3424.7487499085. The cubic root of 11728904 is about 227.2056588718.

The spelling of 11728904 in words is "eleven million, seven hundred twenty-eight thousand, nine hundred four".