6890231 has 2 divisors, whose sum is σ = 6890232. Its totient is φ = 6890230.

The previous prime is 6890227. The next prime is 6890237. The reversal of 6890231 is 1320986.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6890231 - 2² = 6890227 is a prime.

It is a super-2 number, since 2×6890231² = 94950566466722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6890194 and 6890203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6890237) 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, 3445115 + 3445116.

It is an arithmetic number, because the mean of its divisors is an integer number (3445116).

Almost surely, 2^6890231 is an apocalyptic number.

6890231 is a deficient number, since it is larger than the sum of its proper divisors (1).

6890231 is an equidigital number, since it uses as much as digits as its factorization.

6890231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 6890231 is about 2624.9249513081. The cubic root of 6890231 is about 190.2879383038.

The spelling of 6890231 in words is "six million, eight hundred ninety thousand, two hundred thirty-one".