6978814 has 16 divisors (see below), whose sum is σ = 11278080. Its totient is φ = 3228120.

The previous prime is 6978809. The next prime is 6978841. The reversal of 6978814 is 4188796.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502 + ... + 3769.

It is an arithmetic number, because the mean of its divisors is an integer number (704880).

Almost surely, 2^6978814 is an apocalyptic number.

6978814 is a deficient number, since it is larger than the sum of its proper divisors (4299266).

6978814 is a wasteful number, since it uses less digits than its factorization.

6978814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4335.

The product of its digits is 96768, while the sum is 43.

The square root of 6978814 is about 2641.7444993792. The cubic root of 6978814 is about 191.0999358237.

The spelling of 6978814 in words is "six million, nine hundred seventy-eight thousand, eight hundred fourteen".