67045663 has 2 divisors, whose sum is σ = 67045664. Its totient is φ = 67045662.

The previous prime is 67045639. The next prime is 67045673. The reversal of 67045663 is 36654076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67045663 - 2¹³ = 67037471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67045613) 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, 33522831 + 33522832.

It is an arithmetic number, because the mean of its divisors is an integer number (33522832).

Almost surely, 2^67045663 is an apocalyptic number.

67045663 is a deficient number, since it is larger than the sum of its proper divisors (1).

67045663 is an equidigital number, since it uses as much as digits as its factorization.

67045663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 67045663 is about 8188.1416084482. The cubic root of 67045663 is about 406.2470589767.

The spelling of 67045663 in words is "sixty-seven million, forty-five thousand, six hundred sixty-three".