11746721 has 16 divisors (see below), whose sum is σ = 14304000. Its totient is φ = 9624384.

The previous prime is 11746717. The next prime is 11746727. The reversal of 11746721 is 12764711.

11746721 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11746721 - 2² = 11746717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11746727) 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 15 ways as a sum of consecutive naturals, for example, 7145 + ... + 8633.

It is an arithmetic number, because the mean of its divisors is an integer number (894000).

Almost surely, 2^11746721 is an apocalyptic number.

It is an amenable number.

11746721 is a deficient number, since it is larger than the sum of its proper divisors (2557279).

11746721 is an equidigital number, since it uses as much as digits as its factorization.

11746721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533 (or 1519 counting only the distinct ones).

The product of its digits is 2352, while the sum is 29.

The square root of 11746721 is about 3427.3489755203. The cubic root of 11746721 is about 227.3206475971.

The spelling of 11746721 in words is "eleven million, seven hundred forty-six thousand, seven hundred twenty-one".