6868709 has 4 divisors (see below), whose sum is σ = 7230240. Its totient is φ = 6507180.

The previous prime is 6868703. The next prime is 6868727. The reversal of 6868709 is 9078686.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9078686 = 2 ⋅4539343.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6868709 is a prime.

It is a super-3 number, since 3×6868709³ (a number of 21 digits) contains 333 as substring.

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 6868709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868703) 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 3 ways as a sum of consecutive naturals, for example, 180737 + ... + 180774.

It is an arithmetic number, because the mean of its divisors is an integer number (1807560).

Almost surely, 2^6868709 is an apocalyptic number.

It is an amenable number.

6868709 is a deficient number, since it is larger than the sum of its proper divisors (361531).

6868709 is a wasteful number, since it uses less digits than its factorization.

6868709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361530.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 6868709 is about 2620.8221992344. The cubic root of 6868709 is about 190.0896068562.

The spelling of 6868709 in words is "six million, eight hundred sixty-eight thousand, seven hundred nine".