669312283 has 2 divisors, whose sum is σ = 669312284. Its totient is φ = 669312282.

The previous prime is 669312271. The next prime is 669312299. The reversal of 669312283 is 382213966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 669312283 - 2⁵ = 669312251 is a prime.

It is not a weakly prime, because it can be changed into another prime (669312583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334656141 + 334656142.

It is an arithmetic number, because the mean of its divisors is an integer number (334656142).

Almost surely, 2^669312283 is an apocalyptic number.

669312283 is a deficient number, since it is larger than the sum of its proper divisors (1).

669312283 is an equidigital number, since it uses as much as digits as its factorization.

669312283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 40.

The square root of 669312283 is about 25871.0703875970. The cubic root of 669312283 is about 874.7345188607.

The spelling of 669312283 in words is "six hundred sixty-nine million, three hundred twelve thousand, two hundred eighty-three".