6906331 has 4 divisors (see below), whose sum is σ = 6912472. Its totient is φ = 6900192.

The previous prime is 6906323. The next prime is 6906343. The reversal of 6906331 is 1336096.

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 6906331 - 2³ = 6906323 is a prime.

It is a super-2 number, since 2×6906331² = 95394815763122, which contains 22 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 6906331.

It is not an unprimeable number, because it can be changed into a prime (6906631) 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, 846 + ... + 3811.

It is an arithmetic number, because the mean of its divisors is an integer number (1728118).

Almost surely, 2^6906331 is an apocalyptic number.

6906331 is a deficient number, since it is larger than the sum of its proper divisors (6141).

6906331 is a wasteful number, since it uses less digits than its factorization.

6906331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6140.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 6906331 is about 2627.9899162668. The cubic root of 6906331 is about 190.4360345816.

It can be divided in two parts, 690 and 6331, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 6906331 in words is "six million, nine hundred six thousand, three hundred thirty-one".