6868406 has 4 divisors (see below), whose sum is σ = 10302612. Its totient is φ = 3434202.

The previous prime is 6868403. The next prime is 6868423. The reversal of 6868406 is 6048686.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6868406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868403) 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 as a sum of consecutive naturals, namely, 1717100 + ... + 1717103.

It is an arithmetic number, because the mean of its divisors is an integer number (2575653).

Almost surely, 2^6868406 is an apocalyptic number.

6868406 is a deficient number, since it is larger than the sum of its proper divisors (3434206).

6868406 is a wasteful number, since it uses less digits than its factorization.

6868406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3434205.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 6868406 is about 2620.7643923100. The cubic root of 6868406 is about 190.0868116683.

The spelling of 6868406 in words is "six million, eight hundred sixty-eight thousand, four hundred six".