173960389 has 2 divisors, whose sum is σ = 173960390. Its totient is φ = 173960388.

The previous prime is 173960329. The next prime is 173960419. The reversal of 173960389 is 983069371.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111471364 + 62489025 = 10558^2 + 7905^2 .

It is an emirp because it is prime and its reverse (983069371) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 173960389 - 2¹⁷ = 173829317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173960309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86980194 + 86980195.

It is an arithmetic number, because the mean of its divisors is an integer number (86980195).

Almost surely, 2^173960389 is an apocalyptic number.

It is an amenable number.

173960389 is a deficient number, since it is larger than the sum of its proper divisors (1).

173960389 is an equidigital number, since it uses as much as digits as its factorization.

173960389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 173960389 is about 13189.4044217319. The cubic root of 173960389 is about 558.2346501367.

It can be divided in two parts, 1739 and 60389, that added together give a triangular number (62128 = T₃₅₂).

The spelling of 173960389 in words is "one hundred seventy-three million, nine hundred sixty thousand, three hundred eighty-nine".