67478071 has 2 divisors, whose sum is σ = 67478072. Its totient is φ = 67478070.

The previous prime is 67478069. The next prime is 67478111. The reversal of 67478071 is 17087476.

It is an a-pointer prime, because the next prime (67478111) can be obtained adding 67478071 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67478071 - 2¹ = 67478069 is a prime.

Together with 67478069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67478171) 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, 33739035 + 33739036.

It is an arithmetic number, because the mean of its divisors is an integer number (33739036).

Almost surely, 2^67478071 is an apocalyptic number.

67478071 is a deficient number, since it is larger than the sum of its proper divisors (1).

67478071 is an equidigital number, since it uses as much as digits as its factorization.

67478071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 67478071 is about 8214.5036977288. The cubic root of 67478071 is about 407.1185455181.

The spelling of 67478071 in words is "sixty-seven million, four hundred seventy-eight thousand, seventy-one".