11217959 has 2 divisors, whose sum is σ = 11217960. Its totient is φ = 11217958.

The previous prime is 11217949. The next prime is 11217989. The reversal of 11217959 is 95971211.

11217959 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11217959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11217949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5608979 + 5608980.

It is an arithmetic number, because the mean of its divisors is an integer number (5608980).

Almost surely, 2^11217959 is an apocalyptic number.

11217959 is a deficient number, since it is larger than the sum of its proper divisors (1).

11217959 is an equidigital number, since it uses as much as digits as its factorization.

11217959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 35.

The square root of 11217959 is about 3349.3221702309. The cubic root of 11217959 is about 223.8573110710.

The spelling of 11217959 in words is "eleven million, two hundred seventeen thousand, nine hundred fifty-nine".