6768978 has 16 divisors (see below), whose sum is σ = 14250720. Its totient is φ = 2137536.

The previous prime is 6768961. The next prime is 6768991. The reversal of 6768978 is 8798676.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6768978.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29575 + ... + 29802.

It is an arithmetic number, because the mean of its divisors is an integer number (890670).

Almost surely, 2^6768978 is an apocalyptic number.

6768978 is an abundant number, since it is smaller than the sum of its proper divisors (7481742).

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

6768978 is a wasteful number, since it uses less digits than its factorization.

6768978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59401.

The product of its digits is 1016064, while the sum is 51.

The square root of 6768978 is about 2601.7259655852. The cubic root of 6768978 is about 189.1651086531.

The spelling of 6768978 in words is "six million, seven hundred sixty-eight thousand, nine hundred seventy-eight".