11640712 has 8 divisors (see below), whose sum is σ = 21826350. Its totient is φ = 5820352.

The previous prime is 11640689. The next prime is 11640719. The reversal of 11640712 is 21704611.

11640712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7584516 + 4056196 = 2754^2 + 2014^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (11640719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727537 + ... + 727552.

Almost surely, 2^11640712 is an apocalyptic number.

It is an amenable number.

11640712 is a deficient number, since it is larger than the sum of its proper divisors (10185638).

11640712 is a wasteful number, since it uses less digits than its factorization.

11640712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455095 (or 1455091 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 11640712 is about 3411.8487656987. The cubic root of 11640712 is about 226.6347571382.

The spelling of 11640712 in words is "eleven million, six hundred forty thousand, seven hundred twelve".