6978707 has 2 divisors, whose sum is σ = 6978708. Its totient is φ = 6978706.

The previous prime is 6978703. The next prime is 6978709. The reversal of 6978707 is 7078796.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6978707 - 2² = 6978703 is a prime.

Together with 6978709, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6978703) 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 as a sum of consecutive naturals, namely, 3489353 + 3489354.

It is an arithmetic number, because the mean of its divisors is an integer number (3489354).

Almost surely, 2^6978707 is an apocalyptic number.

6978707 is a deficient number, since it is larger than the sum of its proper divisors (1).

6978707 is an equidigital number, since it uses as much as digits as its factorization.

6978707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 6978707 is about 2641.7242475323. The cubic root of 6978707 is about 191.0989591631.

The spelling of 6978707 in words is "six million, nine hundred seventy-eight thousand, seven hundred seven".