6981727 has 4 divisors (see below), whose sum is σ = 7206976. Its totient is φ = 6756480.

The previous prime is 6981703. The next prime is 6981731. The reversal of 6981727 is 7271896.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6981727 - 2⁷ = 6981599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6981727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6981757) 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, 112578 + ... + 112639.

It is an arithmetic number, because the mean of its divisors is an integer number (1801744).

Almost surely, 2^6981727 is an apocalyptic number.

6981727 is a deficient number, since it is larger than the sum of its proper divisors (225249).

6981727 is a wasteful number, since it uses less digits than its factorization.

6981727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225248.

The product of its digits is 42336, while the sum is 40.

The square root of 6981727 is about 2642.2957820804. The cubic root of 6981727 is about 191.1265208890.

It can be divided in two parts, 69 and 81727, that added together give a square (81796 = 286²).

The spelling of 6981727 in words is "six million, nine hundred eighty-one thousand, seven hundred twenty-seven".