67359989 has 2 divisors, whose sum is σ = 67359990. Its totient is φ = 67359988.

The previous prime is 67359983. The next prime is 67360003. The reversal of 67359989 is 98995376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41705764 + 25654225 = 6458^2 + 5065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67359989 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67359983) 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, 33679994 + 33679995.

It is an arithmetic number, because the mean of its divisors is an integer number (33679995).

Almost surely, 2^67359989 is an apocalyptic number.

It is an amenable number.

67359989 is a deficient number, since it is larger than the sum of its proper divisors (1).

67359989 is an equidigital number, since it uses as much as digits as its factorization.

67359989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160, while the sum is 56.

The square root of 67359989 is about 8207.3131413393. The cubic root of 67359989 is about 406.8809303424.

The spelling of 67359989 in words is "sixty-seven million, three hundred fifty-nine thousand, nine hundred eighty-nine".