627666043 has 2 divisors, whose sum is σ = 627666044. Its totient is φ = 627666042.

The previous prime is 627666041. The next prime is 627666077. The reversal of 627666043 is 340666726.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 627666043 - 2¹ = 627666041 is a prime.

Together with 627666041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 627665987 and 627666005.

It is not a weakly prime, because it can be changed into another prime (627666041) 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, 313833021 + 313833022.

It is an arithmetic number, because the mean of its divisors is an integer number (313833022).

Almost surely, 2^627666043 is an apocalyptic number.

627666043 is a deficient number, since it is larger than the sum of its proper divisors (1).

627666043 is an equidigital number, since it uses as much as digits as its factorization.

627666043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 627666043 is about 25053.2641186732. The cubic root of 627666043 is about 856.2019473415.

The spelling of 627666043 in words is "six hundred twenty-seven million, six hundred sixty-six thousand, forty-three".