6662231 has 2 divisors, whose sum is σ = 6662232. Its totient is φ = 6662230.

The previous prime is 6662209. The next prime is 6662233. The reversal of 6662231 is 1322666.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6662231 is a prime.

It is a super-2 number, since 2×6662231² = 88770643794722, which contains 22 as substring.

Together with 6662233, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6662231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6662233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3331115 + 3331116.

It is an arithmetic number, because the mean of its divisors is an integer number (3331116).

Almost surely, 2^6662231 is an apocalyptic number.

6662231 is a deficient number, since it is larger than the sum of its proper divisors (1).

6662231 is an equidigital number, since it uses as much as digits as its factorization.

6662231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 26.

The square root of 6662231 is about 2581.1297913898. The cubic root of 6662231 is about 188.1654552938.

Adding to 6662231 its reverse (1322666), we get a palindrome (7984897).

The spelling of 6662231 in words is "six million, six hundred sixty-two thousand, two hundred thirty-one".