11511697 has 2 divisors, whose sum is σ = 11511698. Its totient is φ = 11511696.

The previous prime is 11511691. The next prime is 11511713. The reversal of 11511697 is 79611511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7447441 + 4064256 = 2729^2 + 2016^2 .

It is a cyclic number.

It is not a de Polignac number, because 11511697 - 2²³ = 3123089 is a prime.

It is not a weakly prime, because it can be changed into another prime (11511691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5755848 + 5755849.

It is an arithmetic number, because the mean of its divisors is an integer number (5755849).

Almost surely, 2^11511697 is an apocalyptic number.

It is an amenable number.

11511697 is a deficient number, since it is larger than the sum of its proper divisors (1).

11511697 is an equidigital number, since it uses as much as digits as its factorization.

11511697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 31.

The square root of 11511697 is about 3392.8891818036. The cubic root of 11511697 is about 225.7943740143.

The spelling of 11511697 in words is "eleven million, five hundred eleven thousand, six hundred ninety-seven".