11700728 has 16 divisors (see below), whose sum is σ = 23626680. Its totient is φ = 5400288.

The previous prime is 11700727. The next prime is 11700761. The reversal of 11700728 is 82700711.

11700728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 11700697 and 11700706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11700727) 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, 56150 + ... + 56357.

Almost surely, 2^11700728 is an apocalyptic number.

It is an amenable number.

11700728 is an abundant number, since it is smaller than the sum of its proper divisors (11925952).

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

11700728 is a wasteful number, since it uses less digits than its factorization.

11700728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112526 (or 112522 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 26.

The square root of 11700728 is about 3420.6326900151. The cubic root of 11700728 is about 227.0235765068.

The spelling of 11700728 in words is "eleven million, seven hundred thousand, seven hundred twenty-eight".