11471729 has 2 divisors, whose sum is σ = 11471730. Its totient is φ = 11471728.

The previous prime is 11471723. The next prime is 11471737. The reversal of 11471729 is 92717411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11404129 + 67600 = 3377^2 + 260^2 .

It is an emirp because it is prime and its reverse (92717411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11471729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11471695 and 11471704.

It is not a weakly prime, because it can be changed into another prime (11471723) 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, 5735864 + 5735865.

It is an arithmetic number, because the mean of its divisors is an integer number (5735865).

Almost surely, 2^11471729 is an apocalyptic number.

It is an amenable number.

11471729 is a deficient number, since it is larger than the sum of its proper divisors (1).

11471729 is an equidigital number, since it uses as much as digits as its factorization.

11471729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 32.

The square root of 11471729 is about 3386.9940950642. The cubic root of 11471729 is about 225.5327556510.

The spelling of 11471729 in words is "eleven million, four hundred seventy-one thousand, seven hundred twenty-nine".