66732097 has 2 divisors, whose sum is σ = 66732098. Its totient is φ = 66732096.

The previous prime is 66732079. The next prime is 66732101. The reversal of 66732097 is 79023766.

Together with previous prime (66732079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65950641 + 781456 = 8121^2 + 884^2 .

It is a cyclic number.

It is not a de Polignac number, because 66732097 - 2²³ = 58343489 is a prime.

It is not a weakly prime, because it can be changed into another prime (66732007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33366048 + 33366049.

It is an arithmetic number, because the mean of its divisors is an integer number (33366049).

Almost surely, 2^66732097 is an apocalyptic number.

It is an amenable number.

66732097 is a deficient number, since it is larger than the sum of its proper divisors (1).

66732097 is an equidigital number, since it uses as much as digits as its factorization.

66732097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 66732097 is about 8168.9715999017. The cubic root of 66732097 is about 405.6127431654.

The spelling of 66732097 in words is "sixty-six million, seven hundred thirty-two thousand, ninety-seven".