11828881 has 2 divisors, whose sum is σ = 11828882. Its totient is φ = 11828880.

The previous prime is 11828867. The next prime is 11828891. The reversal of 11828881 is 18882811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9979281 + 1849600 = 3159^2 + 1360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11828881 is a prime.

It is a super-2 number, since 2×11828881² = 279844851424322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11828881.

It is not a weakly prime, because it can be changed into another prime (11828891) 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 as a sum of consecutive naturals, namely, 5914440 + 5914441.

It is an arithmetic number, because the mean of its divisors is an integer number (5914441).

Almost surely, 2^11828881 is an apocalyptic number.

It is an amenable number.

11828881 is a deficient number, since it is larger than the sum of its proper divisors (1).

11828881 is an equidigital number, since it uses as much as digits as its factorization.

11828881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8192, while the sum is 37.

The square root of 11828881 is about 3439.3140304427. The cubic root of 11828881 is about 227.8493991091.

The spelling of 11828881 in words is "eleven million, eight hundred twenty-eight thousand, eight hundred eighty-one".