11775791 has 8 divisors (see below), whose sum is σ = 11981424. Its totient is φ = 11571840.

The previous prime is 11775779. The next prime is 11775809. The reversal of 11775791 is 19757711.

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 11775791 - 2¹⁸ = 11513647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11775761) 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, 27761 + ... + 28181.

It is an arithmetic number, because the mean of its divisors is an integer number (1497678).

Almost surely, 2^11775791 is an apocalyptic number.

11775791 is a deficient number, since it is larger than the sum of its proper divisors (205633).

11775791 is an equidigital number, since it uses as much as digits as its factorization.

11775791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841.

The product of its digits is 15435, while the sum is 38.

The square root of 11775791 is about 3431.5872420791. The cubic root of 11775791 is about 227.5080124377.

The spelling of 11775791 in words is "eleven million, seven hundred seventy-five thousand, seven hundred ninety-one".