11886481 has 2 divisors, whose sum is σ = 11886482. Its totient is φ = 11886480.

The previous prime is 11886467. The next prime is 11886487. The reversal of 11886481 is 18468811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6864400 + 5022081 = 2620^2 + 2241^2 .

It is an emirp because it is prime and its reverse (18468811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11886481 - 2¹³ = 11878289 is a prime.

It is a super-2 number, since 2×11886481² = 282576861126722, 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 11886481.

It is not a weakly prime, because it can be changed into another prime (11886487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5943240 + 5943241.

It is an arithmetic number, because the mean of its divisors is an integer number (5943241).

Almost surely, 2^11886481 is an apocalyptic number.

It is an amenable number.

11886481 is a deficient number, since it is larger than the sum of its proper divisors (1).

11886481 is an equidigital number, since it uses as much as digits as its factorization.

11886481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 37.

The square root of 11886481 is about 3447.6776241406. The cubic root of 11886481 is about 228.2186332590.

The spelling of 11886481 in words is "eleven million, eight hundred eighty-six thousand, four hundred eighty-one".