11816657 has 2 divisors, whose sum is σ = 11816658. Its totient is φ = 11816656.

The previous prime is 11816647. The next prime is 11816669. The reversal of 11816657 is 75661811.

11816657 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11587216 + 229441 = 3404^2 + 479^2 .

It is a cyclic number.

It is not a de Polignac number, because 11816657 - 2¹⁰ = 11815633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11816647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5908328 + 5908329.

It is an arithmetic number, because the mean of its divisors is an integer number (5908329).

Almost surely, 2^11816657 is an apocalyptic number.

It is an amenable number.

11816657 is a deficient number, since it is larger than the sum of its proper divisors (1).

11816657 is an equidigital number, since it uses as much as digits as its factorization.

11816657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 35.

The square root of 11816657 is about 3437.5364725338. The cubic root of 11816657 is about 227.7708853137.

The spelling of 11816657 in words is "eleven million, eight hundred sixteen thousand, six hundred fifty-seven".