67054979 has 2 divisors, whose sum is σ = 67054980. Its totient is φ = 67054978.

The previous prime is 67054909. The next prime is 67054997. The reversal of 67054979 is 97945076.

Together with next prime (67054997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67054979 - 2¹⁶ = 66989443 is a prime.

It is not a weakly prime, because it can be changed into another prime (67054909) 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, 33527489 + 33527490.

It is an arithmetic number, because the mean of its divisors is an integer number (33527490).

Almost surely, 2^67054979 is an apocalyptic number.

67054979 is a deficient number, since it is larger than the sum of its proper divisors (1).

67054979 is an equidigital number, since it uses as much as digits as its factorization.

67054979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 67054979 is about 8188.7104601396. The cubic root of 67054979 is about 406.2658741253.

The spelling of 67054979 in words is "sixty-seven million, fifty-four thousand, nine hundred seventy-nine".