66472607 has 2 divisors, whose sum is σ = 66472608. Its totient is φ = 66472606.

The previous prime is 66472591. The next prime is 66472613. The reversal of 66472607 is 70627466.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66472607 - 2⁴ = 66472591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66472657) 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, 33236303 + 33236304.

It is an arithmetic number, because the mean of its divisors is an integer number (33236304).

Almost surely, 2^66472607 is an apocalyptic number.

66472607 is a deficient number, since it is larger than the sum of its proper divisors (1).

66472607 is an equidigital number, since it uses as much as digits as its factorization.

66472607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 66472607 is about 8153.0734695574. The cubic root of 66472607 is about 405.0863139714.

The spelling of 66472607 in words is "sixty-six million, four hundred seventy-two thousand, six hundred seven".