67043489 has 2 divisors, whose sum is σ = 67043490. Its totient is φ = 67043488.

The previous prime is 67043477. The next prime is 67043507. The reversal of 67043489 is 98434076.

67043489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37699600 + 29343889 = 6140^2 + 5417^2 .

It is a cyclic number.

It is not a de Polignac number, because 67043489 - 2⁸ = 67043233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67042489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33521744 + 33521745.

It is an arithmetic number, because the mean of its divisors is an integer number (33521745).

Almost surely, 2^67043489 is an apocalyptic number.

It is an amenable number.

67043489 is a deficient number, since it is larger than the sum of its proper divisors (1).

67043489 is an equidigital number, since it uses as much as digits as its factorization.

67043489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 67043489 is about 8188.0088544163. The cubic root of 67043489 is about 406.2426679860.

The spelling of 67043489 in words is "sixty-seven million, forty-three thousand, four hundred eighty-nine".