11520887 has 8 divisors (see below), whose sum is σ = 13383072. Its totient is φ = 9712800.

The previous prime is 11520881. The next prime is 11520889. The reversal of 11520887 is 78802511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11520887 - 2²⁰ = 10472311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11520881) 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 7 ways as a sum of consecutive naturals, for example, 13064 + ... + 13917.

It is an arithmetic number, because the mean of its divisors is an integer number (1672884).

Almost surely, 2^11520887 is an apocalyptic number.

11520887 is a deficient number, since it is larger than the sum of its proper divisors (1862185).

11520887 is an equidigital number, since it uses as much as digits as its factorization.

11520887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27049.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 11520887 is about 3394.2432146209. The cubic root of 11520887 is about 225.8544433032.

The spelling of 11520887 in words is "eleven million, five hundred twenty thousand, eight hundred eighty-seven".