6956681 has 8 divisors (see below), whose sum is σ = 7099560. Its totient is φ = 6815232.

The previous prime is 6956671. The next prime is 6956683. The reversal of 6956681 is 1866596.

It can be written as a sum of positive squares in 4 ways, for example, as 1666681 + 5290000 = 1291^2 + 2300^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6956681 - 2¹⁸ = 6694537 is a prime.

It is a super-2 number, since 2×6956681² = 96790821071522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6956683) 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, 16805 + ... + 17213.

It is an arithmetic number, because the mean of its divisors is an integer number (887445).

Almost surely, 2^6956681 is an apocalyptic number.

It is an amenable number.

6956681 is a deficient number, since it is larger than the sum of its proper divisors (142879).

6956681 is a wasteful number, since it uses less digits than its factorization.

6956681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715.

The product of its digits is 77760, while the sum is 41.

The square root of 6956681 is about 2637.5520847938. The cubic root of 6956681 is about 190.8977002137.

The spelling of 6956681 in words is "six million, nine hundred fifty-six thousand, six hundred eighty-one".