11717579 has 2 divisors, whose sum is σ = 11717580. Its totient is φ = 11717578.

The previous prime is 11717569. The next prime is 11717591. The reversal of 11717579 is 97571711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11717579 - 2⁸ = 11717323 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11717549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5858789 + 5858790.

It is an arithmetic number, because the mean of its divisors is an integer number (5858790).

Almost surely, 2^11717579 is an apocalyptic number.

11717579 is a deficient number, since it is larger than the sum of its proper divisors (1).

11717579 is an equidigital number, since it uses as much as digits as its factorization.

11717579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15435, while the sum is 38.

The square root of 11717579 is about 3423.0949446371. The cubic root of 11717579 is about 227.1325081695.

The spelling of 11717579 in words is "eleven million, seven hundred seventeen thousand, five hundred seventy-nine".