11603728 has 20 divisors (see below), whose sum is σ = 22535388. Its totient is φ = 5788160.

The previous prime is 11603723. The next prime is 11603771. The reversal of 11603728 is 82730611.

It can be written as a sum of positive squares in 2 ways, for example, as 1567504 + 10036224 = 1252^2 + 3168^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11603696 and 11603705.

It is not an unprimeable number, because it can be changed into a prime (11603723) 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, 11700 + ... + 12652.

Almost surely, 2^11603728 is an apocalyptic number.

It is an amenable number.

11603728 is a deficient number, since it is larger than the sum of its proper divisors (10931660).

11603728 is an equidigital number, since it uses as much as digits as its factorization.

11603728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722 (or 1716 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 11603728 is about 3406.4245184651. The cubic root of 11603728 is about 226.3944868323.

The spelling of 11603728 in words is "eleven million, six hundred three thousand, seven hundred twenty-eight".