669311 has 2 divisors, whose sum is σ = 669312. Its totient is φ = 669310.

The previous prime is 669301. The next prime is 669329. The reversal of 669311 is 113966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 669311 - 2⁶ = 669247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (669301) 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, 334655 + 334656.

It is an arithmetic number, because the mean of its divisors is an integer number (334656).

2⁶⁶⁹³¹¹ is an apocalyptic number.

669311 is a deficient number, since it is larger than the sum of its proper divisors (1).

669311 is an equidigital number, since it uses as much as digits as its factorization.

669311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 26.

The square root of 669311 is about 818.1142951935. The cubic root of 669311 is about 87.4733959936.

The spelling of 669311 in words is "six hundred sixty-nine thousand, three hundred eleven".