6978123 has 8 divisors (see below), whose sum is σ = 10338000. Its totient is φ = 4652064.

The previous prime is 6978113. The next prime is 6978133. The reversal of 6978123 is 3218796.

It is an interprime number because it is at equal distance from previous prime (6978113) and next prime (6978133).

It is not a de Polignac number, because 6978123 - 2⁵ = 6978091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6978113) 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, 129198 + ... + 129251.

It is an arithmetic number, because the mean of its divisors is an integer number (1292250).

Almost surely, 2^6978123 is an apocalyptic number.

6978123 is a deficient number, since it is larger than the sum of its proper divisors (3359877).

6978123 is a wasteful number, since it uses less digits than its factorization.

6978123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258458 (or 258452 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 6978123 is about 2641.6137113515. The cubic root of 6978123 is about 191.0936284285.

The spelling of 6978123 in words is "six million, nine hundred seventy-eight thousand, one hundred twenty-three".