11573857 has 2 divisors, whose sum is σ = 11573858. Its totient is φ = 11573856.

The previous prime is 11573843. The next prime is 11573867. The reversal of 11573857 is 75837511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11566801 + 7056 = 3401^2 + 84^2 .

It is an emirp because it is prime and its reverse (75837511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11573857 is a prime.

It is not a weakly prime, because it can be changed into another prime (11573867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5786928 + 5786929.

It is an arithmetic number, because the mean of its divisors is an integer number (5786929).

Almost surely, 2^11573857 is an apocalyptic number.

It is an amenable number.

11573857 is a deficient number, since it is larger than the sum of its proper divisors (1).

11573857 is an equidigital number, since it uses as much as digits as its factorization.

11573857 is an evil number, because the sum of its binary digits is even.

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

The square root of 11573857 is about 3402.0371838062. The cubic root of 11573857 is about 226.2000538895.

The spelling of 11573857 in words is "eleven million, five hundred seventy-three thousand, eight hundred fifty-seven".