1673889871 has 2 divisors, whose sum is σ = 1673889872. Its totient is φ = 1673889870.

The previous prime is 1673889863. The next prime is 1673889881. The reversal of 1673889871 is 1789883761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1673889871 - 2³ = 1673889863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1673889881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836944935 + 836944936.

It is an arithmetic number, because the mean of its divisors is an integer number (836944936).

Almost surely, 2^1673889871 is an apocalyptic number.

1673889871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673889871 is an equidigital number, since it uses as much as digits as its factorization.

1673889871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 58.

The square root of 1673889871 is about 40913.1992271443. The cubic root of 1673889871 is about 1187.3414441823.

The spelling of 1673889871 in words is "one billion, six hundred seventy-three million, eight hundred eighty-nine thousand, eight hundred seventy-one".