11521608 has 32 divisors (see below), whose sum is σ = 32919360. Its totient is φ = 3291840.

The previous prime is 11521607. The next prime is 11521633. The reversal of 11521608 is 80612511.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (11521603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34123 + ... + 34458.

It is an arithmetic number, because the mean of its divisors is an integer number (1028730).

Almost surely, 2^11521608 is an apocalyptic number.

It is an amenable number.

11521608 is an abundant number, since it is smaller than the sum of its proper divisors (21397752).

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

11521608 is a wasteful number, since it uses less digits than its factorization.

11521608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68597 (or 68593 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 11521608 is about 3394.3494222016. The cubic root of 11521608 is about 225.8591546782.

The spelling of 11521608 in words is "eleven million, five hundred twenty-one thousand, six hundred eight".