11775969 has 8 divisors (see below), whose sum is σ = 17445920. Its totient is φ = 7850628.

The previous prime is 11775949. The next prime is 11775971. The reversal of 11775969 is 96957711.

It is not a de Polignac number, because 11775969 - 2¹¹ = 11773921 is a prime.

It is a super-2 number, since 2×11775969² = 277346891777922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11775919) 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, 218047 + ... + 218100.

It is an arithmetic number, because the mean of its divisors is an integer number (2180740).

Almost surely, 2^11775969 is an apocalyptic number.

It is an amenable number.

11775969 is a deficient number, since it is larger than the sum of its proper divisors (5669951).

11775969 is an equidigital number, since it uses as much as digits as its factorization.

11775969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436156 (or 436150 counting only the distinct ones).

The product of its digits is 119070, while the sum is 45.

The square root of 11775969 is about 3431.6131775012. The cubic root of 11775969 is about 227.5091587505.

The spelling of 11775969 in words is "eleven million, seven hundred seventy-five thousand, nine hundred sixty-nine".