11856481 has 16 divisors (see below), whose sum is σ = 14896000. Its totient is φ = 9377424.

The previous prime is 11856479. The next prime is 11856511. The reversal of 11856481 is 18465811.

It is a happy number.

11856481 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11856481 - 2¹ = 11856479 is a prime.

It is a super-2 number, since 2×11856481² = 281152283406722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11856461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3130 + ... + 5788.

It is an arithmetic number, because the mean of its divisors is an integer number (931000).

Almost surely, 2^11856481 is an apocalyptic number.

It is an amenable number.

11856481 is a deficient number, since it is larger than the sum of its proper divisors (3039519).

11856481 is an equidigital number, since it uses as much as digits as its factorization.

11856481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693 (or 2679 counting only the distinct ones).

The product of its digits is 7680, while the sum is 34.

The square root of 11856481 is about 3443.3241206718. The cubic root of 11856481 is about 228.0264730213.

The spelling of 11856481 in words is "eleven million, eight hundred fifty-six thousand, four hundred eighty-one".