11679978 has 8 divisors (see below), whose sum is σ = 23359968. Its totient is φ = 3893324.

The previous prime is 11679971. The next prime is 11679989. The reversal of 11679978 is 87997611.

It is a happy number.

11679978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

11679978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11679971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973326 + ... + 973337.

It is an arithmetic number, because the mean of its divisors is an integer number (2919996).

Almost surely, 2^11679978 is an apocalyptic number.

11679978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11679978 is a wasteful number, since it uses less digits than its factorization.

11679978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946668.

The product of its digits is 190512, while the sum is 48.

The square root of 11679978 is about 3417.5982794939. The cubic root of 11679978 is about 226.8892963542.

The spelling of 11679978 in words is "eleven million, six hundred seventy-nine thousand, nine hundred seventy-eight".