71671079 has 2 divisors, whose sum is σ = 71671080. Its totient is φ = 71671078.

The previous prime is 71671073. The next prime is 71671087. The reversal of 71671079 is 97017617.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71671079 - 2¹⁶ = 71605543 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71671073) 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, 35835539 + 35835540.

It is an arithmetic number, because the mean of its divisors is an integer number (35835540).

Almost surely, 2^71671079 is an apocalyptic number.

71671079 is a deficient number, since it is larger than the sum of its proper divisors (1).

71671079 is an equidigital number, since it uses as much as digits as its factorization.

71671079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18522, while the sum is 38.

The square root of 71671079 is about 8465.8773319722. The cubic root of 71671079 is about 415.3822944570.

The spelling of 71671079 in words is "seventy-one million, six hundred seventy-one thousand, seventy-nine".