11976563 has 4 divisors (see below), whose sum is σ = 11991840. Its totient is φ = 11961288.

The previous prime is 11976541. The next prime is 11976611. The reversal of 11976563 is 36567911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36567911 = 71 ⋅515041.

It is a cyclic number.

It is not a de Polignac number, because 11976563 - 2¹⁰ = 11975539 is a prime.

It is a super-2 number, since 2×11976563² = 286876122585938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11976533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6395 + ... + 8052.

It is an arithmetic number, because the mean of its divisors is an integer number (2997960).

Almost surely, 2^11976563 is an apocalyptic number.

11976563 is a deficient number, since it is larger than the sum of its proper divisors (15277).

11976563 is an equidigital number, since it uses as much as digits as its factorization.

11976563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15276.

The product of its digits is 34020, while the sum is 38.

The square root of 11976563 is about 3460.7171222161. The cubic root of 11976563 is about 228.7937032168.

The spelling of 11976563 in words is "eleven million, nine hundred seventy-six thousand, five hundred sixty-three".