11725729 has 2 divisors, whose sum is σ = 11725730. Its totient is φ = 11725728.

The previous prime is 11725711. The next prime is 11725739. The reversal of 11725729 is 92752711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11662225 + 63504 = 3415^2 + 252^2 .

It is a cyclic number.

It is not a de Polignac number, because 11725729 - 2¹¹ = 11723681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11725694 and 11725703.

It is not a weakly prime, because it can be changed into another prime (11725709) 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, 5862864 + 5862865.

It is an arithmetic number, because the mean of its divisors is an integer number (5862865).

Almost surely, 2^11725729 is an apocalyptic number.

It is an amenable number.

11725729 is a deficient number, since it is larger than the sum of its proper divisors (1).

11725729 is an equidigital number, since it uses as much as digits as its factorization.

11725729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820, while the sum is 34.

The square root of 11725729 is about 3424.2851808808. The cubic root of 11725729 is about 227.1851555901.

The spelling of 11725729 in words is "eleven million, seven hundred twenty-five thousand, seven hundred twenty-nine".