11788857 has 12 divisors (see below), whose sum is σ = 17769024. Its totient is φ = 7517400.

The previous prime is 11788841. The next prime is 11788859. The reversal of 11788857 is 75888711.

It is not a de Polignac number, because 11788857 - 2⁴ = 11788841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11788859) 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 11 ways as a sum of consecutive naturals, for example, 28269 + ... + 28682.

It is an arithmetic number, because the mean of its divisors is an integer number (1480752).

Almost surely, 2^11788857 is an apocalyptic number.

It is an amenable number.

11788857 is a deficient number, since it is larger than the sum of its proper divisors (5980167).

11788857 is a wasteful number, since it uses less digits than its factorization.

11788857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56980 (or 56977 counting only the distinct ones).

The product of its digits is 125440, while the sum is 45.

The square root of 11788857 is about 3433.4904980209. The cubic root of 11788857 is about 227.5921262757.

The spelling of 11788857 in words is "eleven million, seven hundred eighty-eight thousand, eight hundred fifty-seven".