11728526 has 4 divisors (see below), whose sum is σ = 17592792. Its totient is φ = 5864262.

The previous prime is 11728523. The next prime is 11728537. The reversal of 11728526 is 62582711.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11728492 and 11728501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11728523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2932130 + ... + 2932133.

It is an arithmetic number, because the mean of its divisors is an integer number (4398198).

Almost surely, 2^11728526 is an apocalyptic number.

11728526 is a deficient number, since it is larger than the sum of its proper divisors (5864266).

11728526 is an equidigital number, since it uses as much as digits as its factorization.

11728526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5864265.

The product of its digits is 6720, while the sum is 32.

The square root of 11728526 is about 3424.6935629338. The cubic root of 11728526 is about 227.2032180452.

The spelling of 11728526 in words is "eleven million, seven hundred twenty-eight thousand, five hundred twenty-six".