173609983 has 2 divisors, whose sum is σ = 173609984. Its totient is φ = 173609982.

The previous prime is 173609971. The next prime is 173610007. The reversal of 173609983 is 389906371.

It is a weak prime.

It is an emirp because it is prime and its reverse (389906371) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-173609983 is a prime.

It is equal to p_9693649 and since 173609983 and 9693649 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173609903) 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, 86804991 + 86804992.

It is an arithmetic number, because the mean of its divisors is an integer number (86804992).

Almost surely, 2^173609983 is an apocalyptic number.

173609983 is a deficient number, since it is larger than the sum of its proper divisors (1).

173609983 is an equidigital number, since it uses as much as digits as its factorization.

173609983 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 173609983 is about 13176.1141084919. The cubic root of 173609983 is about 557.8595834209.

It can be divided in two parts, 17 and 3609983, that added together give a square (3610000 = 1900²).

The spelling of 173609983 in words is "one hundred seventy-three million, six hundred nine thousand, nine hundred eighty-three".