6978424 has 16 divisors (see below), whose sum is σ = 13115520. Its totient is φ = 3480960.

The previous prime is 6978421. The next prime is 6978431. The reversal of 6978424 is 4248796.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6978421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4009 + ... + 5479.

It is an arithmetic number, because the mean of its divisors is an integer number (819720).

Almost surely, 2^6978424 is an apocalyptic number.

It is an amenable number.

6978424 is a deficient number, since it is larger than the sum of its proper divisors (6137096).

6978424 is a wasteful number, since it uses less digits than its factorization.

6978424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070 (or 2066 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 6978424 is about 2641.6706834880. The cubic root of 6978424 is about 191.0963759847.

The spelling of 6978424 in words is "six million, nine hundred seventy-eight thousand, four hundred twenty-four".