6868641 has 16 divisors (see below), whose sum is σ = 10051776. Its totient is φ = 4145856.

The previous prime is 6868613. The next prime is 6868649. The reversal of 6868641 is 1468686.

It is not a de Polignac number, because 6868641 - 2²² = 2674337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 6868641.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406 + ... + 3728.

It is an arithmetic number, because the mean of its divisors is an integer number (628236).

Almost surely, 2^6868641 is an apocalyptic number.

It is an amenable number.

6868641 is a deficient number, since it is larger than the sum of its proper divisors (3183135).

6868641 is a wasteful number, since it uses less digits than its factorization.

6868641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3392.

The product of its digits is 55296, while the sum is 39.

The square root of 6868641 is about 2620.8092261742. The cubic root of 6868641 is about 190.0889795605.

The spelling of 6868641 in words is "six million, eight hundred sixty-eight thousand, six hundred forty-one".