11706691 has 4 divisors (see below), whose sum is σ = 12110400. Its totient is φ = 11302984.

The previous prime is 11706677. The next prime is 11706697. The reversal of 11706691 is 19660711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11706691 - 2²³ = 3318083 is a prime.

It is a super-2 number, since 2×11706691² = 274093228338962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11706697) 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, 201811 + ... + 201868.

It is an arithmetic number, because the mean of its divisors is an integer number (3027600).

Almost surely, 2^11706691 is an apocalyptic number.

11706691 is a deficient number, since it is larger than the sum of its proper divisors (403709).

11706691 is an equidigital number, since it uses as much as digits as its factorization.

11706691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403708.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 11706691 is about 3421.5042013711. The cubic root of 11706691 is about 227.0621356940.

The spelling of 11706691 in words is "eleven million, seven hundred six thousand, six hundred ninety-one".