6981723 has 12 divisors (see below), whose sum is σ = 11525488. Its totient is φ = 3989520.

The previous prime is 6981703. The next prime is 6981731. The reversal of 6981723 is 3271896.

It is not a de Polignac number, because 6981723 - 2⁶ = 6981659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6981703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55348 + ... + 55473.

Almost surely, 2^6981723 is an apocalyptic number.

6981723 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

6981723 is a deficient number, since it is larger than the sum of its proper divisors (4543765).

6981723 is a wasteful number, since it uses less digits than its factorization.

6981723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110834 (or 110831 counting only the distinct ones).

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

The square root of 6981723 is about 2642.2950251628. The cubic root of 6981723 is about 191.1264843887.

The spelling of 6981723 in words is "six million, nine hundred eighty-one thousand, seven hundred twenty-three".