11717572 has 6 divisors (see below), whose sum is σ = 20505758. Its totient is φ = 5858784.

The previous prime is 11717569. The next prime is 11717579. The reversal of 11717572 is 27571711.

11717572 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., 6270016 + 5447556 = 2504^2 + 2334^2 .

It is not an unprimeable number, because it can be changed into a prime (11717579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1464693 + ... + 1464700.

Almost surely, 2^11717572 is an apocalyptic number.

It is an amenable number.

11717572 is a deficient number, since it is larger than the sum of its proper divisors (8788186).

11717572 is a wasteful number, since it uses less digits than its factorization.

11717572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929397 (or 2929395 counting only the distinct ones).

The product of its digits is 3430, while the sum is 31.

The square root of 11717572 is about 3423.0939221704. The cubic root of 11717572 is about 227.1324629403.

It can be divided in two parts, 117 and 17572, that added together give a square (17689 = 133²).

The spelling of 11717572 in words is "eleven million, seven hundred seventeen thousand, five hundred seventy-two".