11985706 has 8 divisors (see below), whose sum is σ = 18464580. Its totient is φ = 5830848.

The previous prime is 11985703. The next prime is 11985761. The reversal of 11985706 is 60758911.

It can be written as a sum of positive squares in 2 ways, for example, as 11964681 + 21025 = 3459^2 + 145^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (11985703) 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 3 ways as a sum of consecutive naturals, for example, 80911 + ... + 81058.

Almost surely, 2^11985706 is an apocalyptic number.

11985706 is a deficient number, since it is larger than the sum of its proper divisors (6478874).

11985706 is a wasteful number, since it uses less digits than its factorization.

11985706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162008.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 11985706 is about 3462.0378391924. The cubic root of 11985706 is about 228.8519093633.

The spelling of 11985706 in words is "eleven million, nine hundred eighty-five thousand, seven hundred six".