67671427 has 2 divisors, whose sum is σ = 67671428. Its totient is φ = 67671426.

The previous prime is 67671421. The next prime is 67671431. The reversal of 67671427 is 72417676.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67671427 - 2¹¹ = 67669379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67671427.

It is not a weakly prime, because it can be changed into another prime (67671421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33835713 + 33835714.

It is an arithmetic number, because the mean of its divisors is an integer number (33835714).

Almost surely, 2^67671427 is an apocalyptic number.

67671427 is a deficient number, since it is larger than the sum of its proper divisors (1).

67671427 is an equidigital number, since it uses as much as digits as its factorization.

67671427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98784, while the sum is 40.

The square root of 67671427 is about 8226.2644620751. The cubic root of 67671427 is about 407.5070358979.

The spelling of 67671427 in words is "sixty-seven million, six hundred seventy-one thousand, four hundred twenty-seven".