6978756 has 24 divisors (see below), whose sum is σ = 16561440. Its totient is φ = 2286592.

The previous prime is 6978749. The next prime is 6978761. The reversal of 6978756 is 6578796.

6978756 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 6 + 9⁷ + 7⁴ + 8⁷ + 7⁵ + 5⁷ + 6⁴ .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4221 + ... + 5636.

It is an arithmetic number, because the mean of its divisors is an integer number (690060).

Almost surely, 2^6978756 is an apocalyptic number.

It is an amenable number.

6978756 is an abundant number, since it is smaller than the sum of its proper divisors (9582684).

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

6978756 is a wasteful number, since it uses less digits than its factorization.

6978756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9923 (or 9921 counting only the distinct ones).

The product of its digits is 635040, while the sum is 48.

The square root of 6978756 is about 2641.7335217618. The cubic root of 6978756 is about 191.0994064201.

It can be divided in two parts, 697 and 8756, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 6978756 in words is "six million, nine hundred seventy-eight thousand, seven hundred fifty-six".