6906231 has 6 divisors (see below), whose sum is σ = 9975680. Its totient is φ = 4604148.

The previous prime is 6906223. The next prime is 6906239. The reversal of 6906231 is 1326096.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6906223) and next prime (6906239).

It is not a de Polignac number, because 6906231 - 2³ = 6906223 is a prime.

It is a super-2 number, since 2×6906231² = 95392053250722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6906195 and 6906204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6906239) 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 5 ways as a sum of consecutive naturals, for example, 383671 + ... + 383688.

Almost surely, 2^6906231 is an apocalyptic number.

6906231 is a deficient number, since it is larger than the sum of its proper divisors (3069449).

6906231 is a wasteful number, since it uses less digits than its factorization.

6906231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767365 (or 767362 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 6906231 is about 2627.9708902497. The cubic root of 6906231 is about 190.4351154397.

The spelling of 6906231 in words is "six million, nine hundred six thousand, two hundred thirty-one".