11973648 has 60 divisors (see below), whose sum is σ = 32692848. Its totient is φ = 3775680.

The previous prime is 11973641. The next prime is 11973649. The reversal of 11973648 is 84637911.

It is not an unprimeable number, because it can be changed into a prime (11973641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16983 + ... + 17673.

Almost surely, 2^11973648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11973648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16346424).

11973648 is an abundant number, since it is smaller than the sum of its proper divisors (20719200).

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

11973648 is a wasteful number, since it uses less digits than its factorization.

11973648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740 (or 715 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 11973648 is about 3460.2959411010. The cubic root of 11973648 is about 228.7751395226.

It can be divided in two parts, 11973 and 648, that added together give a palindrome (12621).

The spelling of 11973648 in words is "eleven million, nine hundred seventy-three thousand, six hundred forty-eight".