11709612 has 72 divisors (see below), whose sum is σ = 31122000. Its totient is φ = 3708288.

The previous prime is 11709611. The next prime is 11709613. The reversal of 11709612 is 21690711.

11709612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11709611) and next prime (11709613).

It is not an unprimeable number, because it can be changed into a prime (11709611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78514 + ... + 78662.

It is an arithmetic number, because the mean of its divisors is an integer number (432250).

Almost surely, 2^11709612 is an apocalyptic number.

11709612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11709612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15561000).

11709612 is an abundant number, since it is smaller than the sum of its proper divisors (19412388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11709612 is a wasteful number, since it uses less digits than its factorization.

11709612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 11709612 is about 3421.9310337878. The cubic root of 11709612 is about 227.0810192920.

It can be divided in two parts, 11709 and 612, that added together give a palindrome (12321).

The spelling of 11709612 in words is "eleven million, seven hundred nine thousand, six hundred twelve".