668383627 has 2 divisors, whose sum is σ = 668383628. Its totient is φ = 668383626.

The previous prime is 668383609. The next prime is 668383717. The reversal of 668383627 is 726383866.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-668383627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (668383607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334191813 + 334191814.

It is an arithmetic number, because the mean of its divisors is an integer number (334191814).

Almost surely, 2^668383627 is an apocalyptic number.

668383627 is a deficient number, since it is larger than the sum of its proper divisors (1).

668383627 is an equidigital number, since it uses as much as digits as its factorization.

668383627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 49.

The square root of 668383627 is about 25853.1163885517. The cubic root of 668383627 is about 874.3297733404.

The spelling of 668383627 in words is "six hundred sixty-eight million, three hundred eighty-three thousand, six hundred twenty-seven".