11557873 has 2 divisors, whose sum is σ = 11557874. Its totient is φ = 11557872.

The previous prime is 11557837. The next prime is 11557883. The reversal of 11557873 is 37875511.

11557873 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (11557837) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11370384 + 187489 = 3372^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 11557873 - 2¹⁷ = 11426801 is a prime.

It is not a weakly prime, because it can be changed into another prime (11557883) 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, 5778936 + 5778937.

It is an arithmetic number, because the mean of its divisors is an integer number (5778937).

Almost surely, 2^11557873 is an apocalyptic number.

It is an amenable number.

11557873 is a deficient number, since it is larger than the sum of its proper divisors (1).

11557873 is an equidigital number, since it uses as much as digits as its factorization.

11557873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 37.

The square root of 11557873 is about 3399.6871914928. The cubic root of 11557873 is about 226.0958752115.

The spelling of 11557873 in words is "eleven million, five hundred fifty-seven thousand, eight hundred seventy-three".