671868079 has 2 divisors, whose sum is σ = 671868080. Its totient is φ = 671868078.

The previous prime is 671868011. The next prime is 671868133. The reversal of 671868079 is 970868176.

671868079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671868079 - 2⁷ = 671867951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671868179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335934039 + 335934040.

It is an arithmetic number, because the mean of its divisors is an integer number (335934040).

Almost surely, 2^671868079 is an apocalyptic number.

671868079 is a deficient number, since it is larger than the sum of its proper divisors (1).

671868079 is an equidigital number, since it uses as much as digits as its factorization.

671868079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 671868079 is about 25920.4181872130. The cubic root of 671868079 is about 875.8465077043.

The spelling of 671868079 in words is "six hundred seventy-one million, eight hundred sixty-eight thousand, seventy-nine".