6906863 has 4 divisors (see below), whose sum is σ = 6913200. Its totient is φ = 6900528.

The previous prime is 6906859. The next prime is 6906881. The reversal of 6906863 is 3686096.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6906863 - 2² = 6906859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6906803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070 + ... + 3867.

It is an arithmetic number, because the mean of its divisors is an integer number (1728300).

Almost surely, 2^6906863 is an apocalyptic number.

6906863 is a deficient number, since it is larger than the sum of its proper divisors (6337).

6906863 is a wasteful number, since it uses less digits than its factorization.

6906863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6336.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 6906863 is about 2628.0911323620. The cubic root of 6906863 is about 190.4409242676.

It can be divided in two parts, 6906 and 863, that multiplied together give a triangular number (5959878 = T₃₄₅₂).

The spelling of 6906863 in words is "six million, nine hundred six thousand, eight hundred sixty-three".