11557697 has 2 divisors, whose sum is σ = 11557698. Its totient is φ = 11557696.

The previous prime is 11557673. The next prime is 11557703. The reversal of 11557697 is 79675511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10214416 + 1343281 = 3196^2 + 1159^2 .

It is an emirp because it is prime and its reverse (79675511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11557697 - 2⁶ = 11557633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11557607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5778848 + 5778849.

It is an arithmetic number, because the mean of its divisors is an integer number (5778849).

Almost surely, 2^11557697 is an apocalyptic number.

It is an amenable number.

11557697 is a deficient number, since it is larger than the sum of its proper divisors (1).

11557697 is an equidigital number, since it uses as much as digits as its factorization.

11557697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66150, while the sum is 41.

The square root of 11557697 is about 3399.6613066598. The cubic root of 11557697 is about 226.0947275644.

The spelling of 11557697 in words is "eleven million, five hundred fifty-seven thousand, six hundred ninety-seven".