11787560 has 32 divisors (see below), whose sum is σ = 26705160. Its totient is φ = 4682496.

The previous prime is 11787527. The next prime is 11787583. The reversal of 11787560 is 6578711.

It can be written as a sum of positive squares in 4 ways, for example, as 9012004 + 2775556 = 3002^2 + 1666^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11787560.

It is an unprimeable number.

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, 5342 + ... + 7218.

Almost surely, 2^11787560 is an apocalyptic number.

11787560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11787560 is an abundant number, since it is smaller than the sum of its proper divisors (14917600).

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

11787560 is a wasteful number, since it uses less digits than its factorization.

11787560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045 (or 2041 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 11787560 is about 3433.3016179765. The cubic root of 11787560 is about 227.5837794723.

The spelling of 11787560 in words is "eleven million, seven hundred eighty-seven thousand, five hundred sixty".