11528947 has 2 divisors, whose sum is σ = 11528948. Its totient is φ = 11528946.

The previous prime is 11528927. The next prime is 11528969. The reversal of 11528947 is 74982511.

It is a weak prime.

It is an emirp because it is prime and its reverse (74982511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11528947 is a prime.

It is not a weakly prime, because it can be changed into another prime (11528927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5764473 + 5764474.

It is an arithmetic number, because the mean of its divisors is an integer number (5764474).

Almost surely, 2^11528947 is an apocalyptic number.

11528947 is a deficient number, since it is larger than the sum of its proper divisors (1).

11528947 is an equidigital number, since it uses as much as digits as its factorization.

11528947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 37.

The square root of 11528947 is about 3395.4303114627. The cubic root of 11528947 is about 225.9071001998.

The spelling of 11528947 in words is "eleven million, five hundred twenty-eight thousand, nine hundred forty-seven".