668383127 has 2 divisors, whose sum is σ = 668383128. Its totient is φ = 668383126.

The previous prime is 668383123. The next prime is 668383141. The reversal of 668383127 is 721383866.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 668383127 - 2² = 668383123 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 (668383123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334191563 + 334191564.

It is an arithmetic number, because the mean of its divisors is an integer number (334191564).

Almost surely, 2^668383127 is an apocalyptic number.

668383127 is a deficient number, since it is larger than the sum of its proper divisors (1).

668383127 is an equidigital number, since it uses as much as digits as its factorization.

668383127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 44.

The square root of 668383127 is about 25853.1067185358. The cubic root of 668383127 is about 874.3295553194.

The spelling of 668383127 in words is "six hundred sixty-eight million, three hundred eighty-three thousand, one hundred twenty-seven".