6978317 has 8 divisors (see below), whose sum is σ = 7242240. Its totient is φ = 6716880.

The previous prime is 6978287. The next prime is 6978319. The reversal of 6978317 is 7138796.

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

It is a cyclic number.

It is not a de Polignac number, because 6978317 - 2⁶ = 6978253 is a prime.

It is a d-powerful number, because it can be written as 6³ + 9⁶ + 7⁶ + 8⁵ + 3¹² + 1 + 7⁸ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6978319) 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 7 ways as a sum of consecutive naturals, for example, 6608 + ... + 7590.

It is an arithmetic number, because the mean of its divisors is an integer number (905280).

Almost surely, 2^6978317 is an apocalyptic number.

It is an amenable number.

6978317 is a deficient number, since it is larger than the sum of its proper divisors (263923).

6978317 is a wasteful number, since it uses less digits than its factorization.

6978317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243.

The product of its digits is 63504, while the sum is 41.

The square root of 6978317 is about 2641.6504310752. The cubic root of 6978317 is about 191.0953992877.

The spelling of 6978317 in words is "six million, nine hundred seventy-eight thousand, three hundred seventeen".