11589947 has 2 divisors, whose sum is σ = 11589948. Its totient is φ = 11589946.

The previous prime is 11589923. The next prime is 11589989. The reversal of 11589947 is 74998511.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11589947 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11589898 and 11589907.

It is not a weakly prime, because it can be changed into another prime (11589997) 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 as a sum of consecutive naturals, namely, 5794973 + 5794974.

It is an arithmetic number, because the mean of its divisors is an integer number (5794974).

Almost surely, 2^11589947 is an apocalyptic number.

11589947 is a deficient number, since it is larger than the sum of its proper divisors (1).

11589947 is an equidigital number, since it uses as much as digits as its factorization.

11589947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 44.

The square root of 11589947 is about 3404.4011220771. The cubic root of 11589947 is about 226.3048266140.

The spelling of 11589947 in words is "eleven million, five hundred eighty-nine thousand, nine hundred forty-seven".