67049867 has 2 divisors, whose sum is σ = 67049868. Its totient is φ = 67049866.

The previous prime is 67049863. The next prime is 67049891. The reversal of 67049867 is 76894076.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67049867 - 2² = 67049863 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67049863) 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, 33524933 + 33524934.

It is an arithmetic number, because the mean of its divisors is an integer number (33524934).

Almost surely, 2^67049867 is an apocalyptic number.

67049867 is a deficient number, since it is larger than the sum of its proper divisors (1).

67049867 is an equidigital number, since it uses as much as digits as its factorization.

67049867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 67049867 is about 8188.3983171314. The cubic root of 67049867 is about 406.2555498413.

The spelling of 67049867 in words is "sixty-seven million, forty-nine thousand, eight hundred sixty-seven".