66934027 has 2 divisors, whose sum is σ = 66934028. Its totient is φ = 66934026.

The previous prime is 66933983. The next prime is 66934037. The reversal of 66934027 is 72043966.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66934027 - 2⁷ = 66933899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66934037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33467013 + 33467014.

It is an arithmetic number, because the mean of its divisors is an integer number (33467014).

Almost surely, 2^66934027 is an apocalyptic number.

66934027 is a deficient number, since it is larger than the sum of its proper divisors (1).

66934027 is an equidigital number, since it uses as much as digits as its factorization.

66934027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 66934027 is about 8181.3218369650. The cubic root of 66934027 is about 406.0214565573.

The spelling of 66934027 in words is "sixty-six million, nine hundred thirty-four thousand, twenty-seven".