67671841 has 2 divisors, whose sum is σ = 67671842. Its totient is φ = 67671840.

The previous prime is 67671839. The next prime is 67671847. The reversal of 67671841 is 14817676.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43612816 + 24059025 = 6604^2 + 4905^2 .

It is a cyclic number.

It is not a de Polignac number, because 67671841 - 2¹ = 67671839 is a prime.

Together with 67671839, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 67671794 and 67671803.

It is not a weakly prime, because it can be changed into another prime (67671847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33835920 + 33835921.

It is an arithmetic number, because the mean of its divisors is an integer number (33835921).

Almost surely, 2^67671841 is an apocalyptic number.

It is an amenable number.

67671841 is a deficient number, since it is larger than the sum of its proper divisors (1).

67671841 is an equidigital number, since it uses as much as digits as its factorization.

67671841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 40.

The square root of 67671841 is about 8226.2896253414. The cubic root of 67671841 is about 407.5078669112.

The spelling of 67671841 in words is "sixty-seven million, six hundred seventy-one thousand, eight hundred forty-one".