11867617 has 4 divisors (see below), whose sum is σ = 12017920. Its totient is φ = 11717316.

The previous prime is 11867591. The next prime is 11867623. The reversal of 11867617 is 71676811.

11867617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71676811 = 17 ⋅4216283.

It is a cyclic number.

It is not a de Polignac number, because 11867617 - 2¹⁹ = 11343329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11867657) 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, 75033 + ... + 75190.

It is an arithmetic number, because the mean of its divisors is an integer number (3004480).

Almost surely, 2^11867617 is an apocalyptic number.

It is an amenable number.

11867617 is a deficient number, since it is larger than the sum of its proper divisors (150303).

11867617 is an equidigital number, since it uses as much as digits as its factorization.

11867617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150302.

The product of its digits is 14112, while the sum is 37.

The square root of 11867617 is about 3444.9407832356. The cubic root of 11867617 is about 228.0978406899.

The spelling of 11867617 in words is "eleven million, eight hundred sixty-seven thousand, six hundred seventeen".