11788978 has 8 divisors (see below), whose sum is σ = 17735472. Its totient is φ = 5877156.

The previous prime is 11788969. The next prime is 11788979. The reversal of 11788978 is 87988711.

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

It is not an unprimeable number, because it can be changed into a prime (11788979) 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 3 ways as a sum of consecutive naturals, for example, 7800 + ... + 9187.

It is an arithmetic number, because the mean of its divisors is an integer number (2216934).

Almost surely, 2^11788978 is an apocalyptic number.

11788978 is a deficient number, since it is larger than the sum of its proper divisors (5946494).

11788978 is a wasteful number, since it uses less digits than its factorization.

11788978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17336.

The product of its digits is 225792, while the sum is 49.

The square root of 11788978 is about 3433.5081185283. The cubic root of 11788978 is about 227.5929049362.

The spelling of 11788978 in words is "eleven million, seven hundred eighty-eight thousand, nine hundred seventy-eight".