11606721 has 16 divisors (see below), whose sum is σ = 17740800. Its totient is φ = 6612048.

The previous prime is 11606713. The next prime is 11606753. The reversal of 11606721 is 12760611.

11606721 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 11606721 - 2³ = 11606713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11606691 and 11606700.

It is not an unprimeable number, because it can be changed into a prime (11606521) 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, 8590 + ... + 9848.

It is an arithmetic number, because the mean of its divisors is an integer number (1108800).

Almost surely, 2^11606721 is an apocalyptic number.

It is an amenable number.

11606721 is a deficient number, since it is larger than the sum of its proper divisors (6134079).

11606721 is a wasteful number, since it uses less digits than its factorization.

11606721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 11606721 is about 3406.8638070812. The cubic root of 11606721 is about 226.4139501304.

The spelling of 11606721 in words is "eleven million, six hundred six thousand, seven hundred twenty-one".