6981355 has 16 divisors (see below), whose sum is σ = 8780544. Its totient is φ = 5322240.

The previous prime is 6981349. The next prime is 6981367. The reversal of 6981355 is 5531896.

It is not a de Polignac number, because 6981355 - 2⁵ = 6981323 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11007 + ... + 11623.

It is an arithmetic number, because the mean of its divisors is an integer number (548784).

Almost surely, 2^6981355 is an apocalyptic number.

6981355 is a deficient number, since it is larger than the sum of its proper divisors (1799189).

6981355 is a wasteful number, since it uses less digits than its factorization.

6981355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726.

The product of its digits is 32400, while the sum is 37.

The square root of 6981355 is about 2642.2253878123. The cubic root of 6981355 is about 191.1231262977.

The spelling of 6981355 in words is "six million, nine hundred eighty-one thousand, three hundred fifty-five".