6690323 has 2 divisors, whose sum is σ = 6690324. Its totient is φ = 6690322.

The previous prime is 6690319. The next prime is 6690331. The reversal of 6690323 is 3230966.

6690323 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6690323 - 2² = 6690319 is a prime.

It is not a weakly prime, because it can be changed into another prime (6690353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3345161 + 3345162.

It is an arithmetic number, because the mean of its divisors is an integer number (3345162).

Almost surely, 2^6690323 is an apocalyptic number.

6690323 is a deficient number, since it is larger than the sum of its proper divisors (1).

6690323 is an equidigital number, since it uses as much as digits as its factorization.

6690323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 6690323 is about 2586.5658700292. The cubic root of 6690323 is about 188.4295576016.

The spelling of 6690323 in words is "six million, six hundred ninety thousand, three hundred twenty-three".