11787617 has 8 divisors (see below), whose sum is σ = 11978400. Its totient is φ = 11598624.

The previous prime is 11787593. The next prime is 11787631. The reversal of 11787617 is 71678711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11787617 - 2²⁰ = 10739041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11787637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18734 + ... + 19352.

It is an arithmetic number, because the mean of its divisors is an integer number (1497300).

Almost surely, 2^11787617 is an apocalyptic number.

It is an amenable number.

11787617 is a deficient number, since it is larger than the sum of its proper divisors (190783).

11787617 is a wasteful number, since it uses less digits than its factorization.

11787617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895.

The product of its digits is 16464, while the sum is 38.

The square root of 11787617 is about 3433.3099190140. The cubic root of 11787617 is about 227.5841463069.

The spelling of 11787617 in words is "eleven million, seven hundred eighty-seven thousand, six hundred seventeen".