11728025 has 6 divisors (see below), whose sum is σ = 14542782. Its totient is φ = 9382400.

The previous prime is 11728021. The next prime is 11728033. The reversal of 11728025 is 52082711.

It can be written as a sum of positive squares in 3 ways, for example, as 1792921 + 9935104 = 1339^2 + 3152^2 .

It is not a de Polignac number, because 11728025 - 2² = 11728021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11727985 and 11728003.

It is not an unprimeable number, because it can be changed into a prime (11728021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 234536 + ... + 234585.

It is an arithmetic number, because the mean of its divisors is an integer number (2423797).

Almost surely, 2^11728025 is an apocalyptic number.

It is an amenable number.

11728025 is a deficient number, since it is larger than the sum of its proper divisors (2814757).

11728025 is an equidigital number, since it uses as much as digits as its factorization.

11728025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469131 (or 469126 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 11728025 is about 3424.6204169221. The cubic root of 11728025 is about 227.1999829006.

The spelling of 11728025 in words is "eleven million, seven hundred twenty-eight thousand, twenty-five".