6659231 has 2 divisors, whose sum is σ = 6659232. Its totient is φ = 6659230.

The previous prime is 6659227. The next prime is 6659239. The reversal of 6659231 is 1329566.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6659231 - 2² = 6659227 is a prime.

It is a super-2 number, since 2×6659231² = 88690715022722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6659239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3329615 + 3329616.

It is an arithmetic number, because the mean of its divisors is an integer number (3329616).

Almost surely, 2^6659231 is an apocalyptic number.

6659231 is a deficient number, since it is larger than the sum of its proper divisors (1).

6659231 is an equidigital number, since it uses as much as digits as its factorization.

6659231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 32.

The square root of 6659231 is about 2580.5485850881. The cubic root of 6659231 is about 188.1372074432.

The spelling of 6659231 in words is "six million, six hundred fifty-nine thousand, two hundred thirty-one".