66484087 has 2 divisors, whose sum is σ = 66484088. Its totient is φ = 66484086.

The previous prime is 66484069. The next prime is 66484123. The reversal of 66484087 is 78048466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66484087 - 2⁷ = 66483959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66484387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33242043 + 33242044.

It is an arithmetic number, because the mean of its divisors is an integer number (33242044).

Almost surely, 2^66484087 is an apocalyptic number.

66484087 is a deficient number, since it is larger than the sum of its proper divisors (1).

66484087 is an equidigital number, since it uses as much as digits as its factorization.

66484087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 66484087 is about 8153.7774681432. Note that the first 3 decimals coincide. The cubic root of 66484087 is about 405.1096324651.

The spelling of 66484087 in words is "sixty-six million, four hundred eighty-four thousand, eighty-seven".