6975978 has 8 divisors (see below), whose sum is σ = 13951968. Its totient is φ = 2325324.

The previous prime is 6975971. The next prime is 6976033. The reversal of 6975978 is 8795796.

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

6975978 is an admirable 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 6975978.

It is not an unprimeable number, because it can be changed into a prime (6975971) 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, 581326 + ... + 581337.

It is an arithmetic number, because the mean of its divisors is an integer number (1743996).

Almost surely, 2^6975978 is an apocalyptic number.

6975978 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.

6975978 is a wasteful number, since it uses less digits than its factorization.

6975978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162668.

The product of its digits is 952560, while the sum is 51.

The square root of 6975978 is about 2641.2076783169. The cubic root of 6975978 is about 191.0740463795.

The spelling of 6975978 in words is "six million, nine hundred seventy-five thousand, nine hundred seventy-eight".