11617761 has 4 divisors (see below), whose sum is σ = 15490352. Its totient is φ = 7745172.

The previous prime is 11617751. The next prime is 11617799. The reversal of 11617761 is 16771611.

11617761 is digitally balanced in base 3, 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: 16771611 = 3 ⋅5590537.

It is not a de Polignac number, because 11617761 - 2¹⁴ = 11601377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11617751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1936291 + ... + 1936296.

It is an arithmetic number, because the mean of its divisors is an integer number (3872588).

Almost surely, 2^11617761 is an apocalyptic number.

It is an amenable number.

11617761 is a deficient number, since it is larger than the sum of its proper divisors (3872591).

11617761 is an equidigital number, since it uses as much as digits as its factorization.

11617761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3872590.

The product of its digits is 1764, while the sum is 30.

The square root of 11617761 is about 3408.4836804656. The cubic root of 11617761 is about 226.4857136631.

The spelling of 11617761 in words is "eleven million, six hundred seventeen thousand, seven hundred sixty-one".