11643316 has 6 divisors (see below), whose sum is σ = 20375810. Its totient is φ = 5821656.

The previous prime is 11643311. The next prime is 11643319. The reversal of 11643316 is 61334611.

It is a happy number.

11643316 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., 9672100 + 1971216 = 3110^2 + 1404^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11643311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1455411 + ... + 1455418.

Almost surely, 2^11643316 is an apocalyptic number.

It is an amenable number.

11643316 is a deficient number, since it is larger than the sum of its proper divisors (8732494).

11643316 is a wasteful number, since it uses less digits than its factorization.

11643316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910833 (or 2910831 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The square root of 11643316 is about 3412.2303556472. The cubic root of 11643316 is about 226.6516550997.

Adding to 11643316 its reverse (61334611), we get a palindrome (72977927).

The spelling of 11643316 in words is "eleven million, six hundred forty-three thousand, three hundred sixteen".