11670257 has 2 divisors, whose sum is σ = 11670258. Its totient is φ = 11670256.

The previous prime is 11670227. The next prime is 11670277. The reversal of 11670257 is 75207611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7706176 + 3964081 = 2776^2 + 1991^2 .

It is an emirp because it is prime and its reverse (75207611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11670257 - 2⁶ = 11670193 is a prime.

It is not a weakly prime, because it can be changed into another prime (11670227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5835128 + 5835129.

It is an arithmetic number, because the mean of its divisors is an integer number (5835129).

Almost surely, 2^11670257 is an apocalyptic number.

It is an amenable number.

11670257 is a deficient number, since it is larger than the sum of its proper divisors (1).

11670257 is an equidigital number, since it uses as much as digits as its factorization.

11670257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 11670257 is about 3416.1757858752. The cubic root of 11670257 is about 226.8263338205.

Adding to 11670257 its reverse (75207611), we get a palindrome (86877868).

The spelling of 11670257 in words is "eleven million, six hundred seventy thousand, two hundred fifty-seven".