67673971 has 2 divisors, whose sum is σ = 67673972. Its totient is φ = 67673970.

The previous prime is 67673929. The next prime is 67673989. The reversal of 67673971 is 17937676.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67673971 - 2¹⁷ = 67542899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67673071) 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, 33836985 + 33836986.

It is an arithmetic number, because the mean of its divisors is an integer number (33836986).

Almost surely, 2^67673971 is an apocalyptic number.

67673971 is a deficient number, since it is larger than the sum of its proper divisors (1).

67673971 is an equidigital number, since it uses as much as digits as its factorization.

67673971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 333396, while the sum is 46.

The square root of 67673971 is about 8226.4190873065. The cubic root of 67673971 is about 407.5121423609.

It can be divided in two parts, 67673 and 971, that added together give a square (68644 = 262²).

The spelling of 67673971 in words is "sixty-seven million, six hundred seventy-three thousand, nine hundred seventy-one".