173983889 has 2 divisors, whose sum is σ = 173983890. Its totient is φ = 173983888.

The previous prime is 173983877. The next prime is 173983907. The reversal of 173983889 is 988389371.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138462289 + 35521600 = 11767^2 + 5960^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-173983889 is a prime.

It is not a weakly prime, because it can be changed into another prime (173989889) 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, 86991944 + 86991945.

It is an arithmetic number, because the mean of its divisors is an integer number (86991945).

Almost surely, 2^173983889 is an apocalyptic number.

It is an amenable number.

173983889 is a deficient number, since it is larger than the sum of its proper divisors (1).

173983889 is an equidigital number, since it uses as much as digits as its factorization.

173983889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 56.

The square root of 173983889 is about 13190.2952582571. The cubic root of 173983889 is about 558.2597859807.

The spelling of 173983889 in words is "one hundred seventy-three million, nine hundred eighty-three thousand, eight hundred eighty-nine".