6698678 has 16 divisors (see below), whose sum is σ = 12088320. Its totient is φ = 2719656.

The previous prime is 6698677. The next prime is 6698687. The reversal of 6698678 is 8768966.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6698677) 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, 12326 + ... + 12857.

It is an arithmetic number, because the mean of its divisors is an integer number (755520).

Almost surely, 2^6698678 is an apocalyptic number.

6698678 is a deficient number, since it is larger than the sum of its proper divisors (5389642).

6698678 is a wasteful number, since it uses less digits than its factorization.

6698678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25211.

The product of its digits is 870912, while the sum is 50.

The square root of 6698678 is about 2588.1804419321. The cubic root of 6698678 is about 188.5079630865.

The spelling of 6698678 in words is "six million, six hundred ninety-eight thousand, six hundred seventy-eight".