6698231 has 2 divisors, whose sum is σ = 6698232. Its totient is φ = 6698230.

The previous prime is 6698207. The next prime is 6698233. The reversal of 6698231 is 1328966.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6698231 - 2¹⁴ = 6681847 is a prime.

It is a super-2 number, since 2×6698231² = 89732597058722, which contains 22 as substring.

Together with 6698233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6698191 and 6698200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6698233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3349115 + 3349116.

It is an arithmetic number, because the mean of its divisors is an integer number (3349116).

Almost surely, 2^6698231 is an apocalyptic number.

6698231 is a deficient number, since it is larger than the sum of its proper divisors (1).

6698231 is an equidigital number, since it uses as much as digits as its factorization.

6698231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 6698231 is about 2588.0940863887. The cubic root of 6698231 is about 188.5037699739.

The spelling of 6698231 in words is "six million, six hundred ninety-eight thousand, two hundred thirty-one".