67861067 has 2 divisors, whose sum is σ = 67861068. Its totient is φ = 67861066.

The previous prime is 67861043. The next prime is 67861069. The reversal of 67861067 is 76016876.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67861067 - 2⁸ = 67860811 is a prime.

Together with 67861069, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67861069) 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, 33930533 + 33930534.

It is an arithmetic number, because the mean of its divisors is an integer number (33930534).

Almost surely, 2^67861067 is an apocalyptic number.

67861067 is a deficient number, since it is larger than the sum of its proper divisors (1).

67861067 is an equidigital number, since it uses as much as digits as its factorization.

67861067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 67861067 is about 8237.7828934732. The cubic root of 67861067 is about 407.8873419410.

The spelling of 67861067 in words is "sixty-seven million, eight hundred sixty-one thousand, sixty-seven".