11276991 has 12 divisors (see below), whose sum is σ = 17769960. Its totient is φ = 6834480.

The previous prime is 11276989. The next prime is 11277017. The reversal of 11276991 is 19967211.

It is not a de Polignac number, because 11276991 - 2¹ = 11276989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11276921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56856 + ... + 57053.

It is an arithmetic number, because the mean of its divisors is an integer number (1480830).

Almost surely, 2^11276991 is an apocalyptic number.

11276991 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11276991 is a deficient number, since it is larger than the sum of its proper divisors (6492969).

11276991 is a wasteful number, since it uses less digits than its factorization.

11276991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113926 (or 113923 counting only the distinct ones).

The product of its digits is 6804, while the sum is 36.

The square root of 11276991 is about 3358.1231365154. The cubic root of 11276991 is about 224.2492906470.

It can be divided in two parts, 1127 and 6991, that added together give a palindrome (8118).

The spelling of 11276991 in words is "eleven million, two hundred seventy-six thousand, nine hundred ninety-one".