67648843 has 2 divisors, whose sum is σ = 67648844. Its totient is φ = 67648842.

The previous prime is 67648837. The next prime is 67648849. The reversal of 67648843 is 34884676.

It is a balanced prime because it is at equal distance from previous prime (67648837) and next prime (67648849).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67648843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67648793 and 67648802.

It is not a weakly prime, because it can be changed into another prime (67648849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33824421 + 33824422.

It is an arithmetic number, because the mean of its divisors is an integer number (33824422).

Almost surely, 2^67648843 is an apocalyptic number.

67648843 is a deficient number, since it is larger than the sum of its proper divisors (1).

67648843 is an equidigital number, since it uses as much as digits as its factorization.

67648843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 46.

The square root of 67648843 is about 8224.8916710191. The cubic root of 67648843 is about 407.4616983836.

The spelling of 67648843 in words is "sixty-seven million, six hundred forty-eight thousand, eight hundred forty-three".