1673886889 has 2 divisors, whose sum is σ = 1673886890. Its totient is φ = 1673886888.

The previous prime is 1673886883. The next prime is 1673886899. The reversal of 1673886889 is 9886883761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1606646889 + 67240000 = 40083^2 + 8200^2 .

It is a cyclic number.

It is not a de Polignac number, because 1673886889 - 2⁵ = 1673886857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1673886889.

It is not a weakly prime, because it can be changed into another prime (1673886883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836943444 + 836943445.

It is an arithmetic number, because the mean of its divisors is an integer number (836943445).

Almost surely, 2^1673886889 is an apocalyptic number.

It is an amenable number.

1673886889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673886889 is an equidigital number, since it uses as much as digits as its factorization.

1673886889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27869184, while the sum is 64.

The square root of 1673886889 is about 40913.1627841212. The cubic root of 1673886889 is about 1187.3407391071.

The spelling of 1673886889 in words is "one billion, six hundred seventy-three million, eight hundred eighty-six thousand, eight hundred eighty-nine".