11887555 has 8 divisors (see below), whose sum is σ = 14285232. Its totient is φ = 9496608.

The previous prime is 11887553. The next prime is 11887583. The reversal of 11887555 is 55578811.

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 11887555 - 2¹ = 11887553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11887553) 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, 3892 + ... + 6238.

It is an arithmetic number, because the mean of its divisors is an integer number (1785654).

Almost surely, 2^11887555 is an apocalyptic number.

11887555 is a deficient number, since it is larger than the sum of its proper divisors (2397677).

11887555 is a wasteful number, since it uses less digits than its factorization.

11887555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365.

The product of its digits is 56000, while the sum is 40.

The square root of 11887555 is about 3447.8333776446. The cubic root of 11887555 is about 228.2255065977.

The spelling of 11887555 in words is "eleven million, eight hundred eighty-seven thousand, five hundred fifty-five".