6981670 has 16 divisors (see below), whose sum is σ = 12597120. Its totient is φ = 2785984.

The previous prime is 6981661. The next prime is 6981671. The reversal of 6981670 is 761896.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6981671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7659 + ... + 8521.

It is an arithmetic number, because the mean of its divisors is an integer number (787320).

Almost surely, 2^6981670 is an apocalyptic number.

6981670 is a deficient number, since it is larger than the sum of its proper divisors (5615450).

6981670 is a wasteful number, since it uses less digits than its factorization.

6981670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 6981670 is about 2642.2849959836. The cubic root of 6981670 is about 191.1260007579.

The spelling of 6981670 in words is "six million, nine hundred eighty-one thousand, six hundred seventy".