11515896 has 96 divisors (see below), whose sum is σ = 36248160. Its totient is φ = 3234816.

The previous prime is 11515879. The next prime is 11515897. The reversal of 11515896 is 69851511.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 11515896.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11515897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36636 + ... + 36948.

It is an arithmetic number, because the mean of its divisors is an integer number (377585).

Almost surely, 2^11515896 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 11515896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18124080).

11515896 is an abundant number, since it is smaller than the sum of its proper divisors (24732264).

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

11515896 is a wasteful number, since it uses less digits than its factorization.

11515896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 398 counting only the distinct ones).

The product of its digits is 10800, while the sum is 36.

The square root of 11515896 is about 3393.5079195428. The cubic root of 11515896 is about 225.8218242192.

The spelling of 11515896 in words is "eleven million, five hundred fifteen thousand, eight hundred ninety-six".