11721706 has 8 divisors (see below), whose sum is σ = 17956800. Its totient is φ = 5736108.

The previous prime is 11721691. The next prime is 11721733. The reversal of 11721706 is 60712711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62256 + ... + 62443.

It is an arithmetic number, because the mean of its divisors is an integer number (2244600).

Almost surely, 2^11721706 is an apocalyptic number.

11721706 is a deficient number, since it is larger than the sum of its proper divisors (6235094).

11721706 is a wasteful number, since it uses less digits than its factorization.

11721706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124748.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 11721706 is about 3423.6977086186. The cubic root of 11721706 is about 227.1591708397.

The spelling of 11721706 in words is "eleven million, seven hundred twenty-one thousand, seven hundred six".