666272627 has 2 divisors, whose sum is σ = 666272628. Its totient is φ = 666272626.

The previous prime is 666272599. The next prime is 666272641. The reversal of 666272627 is 726272666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 666272627 - 2⁸ = 666272371 is a prime.

It is a super-2 number, since 2×666272627² = 887838426978962258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (666272657) 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, 333136313 + 333136314.

It is an arithmetic number, because the mean of its divisors is an integer number (333136314).

Almost surely, 2^666272627 is an apocalyptic number.

666272627 is a deficient number, since it is larger than the sum of its proper divisors (1).

666272627 is an equidigital number, since it uses as much as digits as its factorization.

666272627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 44.

The square root of 666272627 is about 25812.2573015225. The cubic root of 666272627 is about 873.4083181380.

The spelling of 666272627 in words is "six hundred sixty-six million, two hundred seventy-two thousand, six hundred twenty-seven".