6981351 has 32 divisors (see below), whose sum is σ = 10762752. Its totient is φ = 3991680.

The previous prime is 6981349. The next prime is 6981367. The reversal of 6981351 is 1531896.

It is not a de Polignac number, because 6981351 - 2¹ = 6981349 is a prime.

6981351 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6981301) 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 31 ways as a sum of consecutive naturals, for example, 38481 + ... + 38661.

It is an arithmetic number, because the mean of its divisors is an integer number (336336).

Almost surely, 2^6981351 is an apocalyptic number.

6981351 is a deficient number, since it is larger than the sum of its proper divisors (3781401).

6981351 is a wasteful number, since it uses less digits than its factorization.

6981351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263.

The product of its digits is 6480, while the sum is 33.

The square root of 6981351 is about 2642.2246308745. The cubic root of 6981351 is about 191.1230897961.

The spelling of 6981351 in words is "six million, nine hundred eighty-one thousand, three hundred fifty-one".