11726564 has 12 divisors (see below), whose sum is σ = 20546988. Its totient is φ = 5856000.

The previous prime is 11726563. The next prime is 11726567. The reversal of 11726564 is 46562711.

It can be written as a sum of positive squares in 2 ways, for example, as 369664 + 11356900 = 608^2 + 3370^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11726564.

It is not an unprimeable number, because it can be changed into a prime (11726563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3584 + ... + 6024.

It is an arithmetic number, because the mean of its divisors is an integer number (1712249).

Almost surely, 2^11726564 is an apocalyptic number.

It is an amenable number.

11726564 is a deficient number, since it is larger than the sum of its proper divisors (8820424).

11726564 is a wasteful number, since it uses less digits than its factorization.

11726564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3646 (or 3644 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 11726564 is about 3424.4071019667. The cubic root of 11726564 is about 227.1905481504.

The spelling of 11726564 in words is "eleven million, seven hundred twenty-six thousand, five hundred sixty-four".