6978753 has 6 divisors (see below), whose sum is σ = 10080434. Its totient is φ = 4652496.

The previous prime is 6978749. The next prime is 6978761. The reversal of 6978753 is 3578796.

It is a happy number.

6978753 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5992704 + 986049 = 2448^2 + 993^2 .

It is not a de Polignac number, because 6978753 - 2² = 6978749 is a prime.

It is a d-powerful number, because it can be written as 6⁴ + 9⁷ + 7⁴ + 8⁷ + 7⁵ + 5⁷ + 3 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6978699 and 6978708.

It is not an unprimeable number, because it can be changed into a prime (6978703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 387700 + ... + 387717.

Almost surely, 2^6978753 is an apocalyptic number.

It is an amenable number.

6978753 is a deficient number, since it is larger than the sum of its proper divisors (3101681).

6978753 is a wasteful number, since it uses less digits than its factorization.

6978753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775423 (or 775420 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 6978753 is about 2641.7329539528. The cubic root of 6978753 is about 191.0993790371.

The spelling of 6978753 in words is "six million, nine hundred seventy-eight thousand, seven hundred fifty-three".