11711611 has 4 divisors (see below), whose sum is σ = 11763432. Its totient is φ = 11659792.

The previous prime is 11711593. The next prime is 11711617. The reversal of 11711611 is 11611711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11611711 = 23 ⋅504857.

It is a cyclic number.

It is not a de Polignac number, because 11711611 - 2²³ = 3323003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11711617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25570 + ... + 26023.

It is an arithmetic number, because the mean of its divisors is an integer number (2940858).

Almost surely, 2^11711611 is an apocalyptic number.

11711611 is a deficient number, since it is larger than the sum of its proper divisors (51821).

11711611 is an equidigital number, since it uses as much as digits as its factorization.

11711611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51820.

The product of its digits is 42, while the sum is 19.

The square root of 11711611 is about 3422.2231078642. The cubic root of 11711611 is about 227.0939405607.

The spelling of 11711611 in words is "eleven million, seven hundred eleven thousand, six hundred eleven".