11715617 has 2 divisors, whose sum is σ = 11715618. Its totient is φ = 11715616.

The previous prime is 11715611. The next prime is 11715631. The reversal of 11715617 is 71651711.

11715617 is digitally balanced in base 3, because in such base 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., 7054336 + 4661281 = 2656^2 + 2159^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11715617 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11715617.

It is not a weakly prime, because it can be changed into another prime (11715611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5857808 + 5857809.

It is an arithmetic number, because the mean of its divisors is an integer number (5857809).

Almost surely, 2^11715617 is an apocalyptic number.

It is an amenable number.

11715617 is a deficient number, since it is larger than the sum of its proper divisors (1).

11715617 is an equidigital number, since it uses as much as digits as its factorization.

11715617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1470, while the sum is 29.

The square root of 11715617 is about 3422.8083498788. The cubic root of 11715617 is about 227.1198303841.

It can be divided in two parts, 11 and 715617, that multiplied together give a palindrome (7871787).

The spelling of 11715617 in words is "eleven million, seven hundred fifteen thousand, six hundred seventeen".