489476173 has 2 divisors, whose sum is σ = 489476174. Its totient is φ = 489476172.

The previous prime is 489476171. The next prime is 489476249. The reversal of 489476173 is 371674984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 391327524 + 98148649 = 19782^2 + 9907^2 .

It is a cyclic number.

It is not a de Polignac number, because 489476173 - 2¹ = 489476171 is a prime.

Together with 489476171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489476171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244738086 + 244738087.

It is an arithmetic number, because the mean of its divisors is an integer number (244738087).

Almost surely, 2^489476173 is an apocalyptic number.

It is an amenable number.

489476173 is a deficient number, since it is larger than the sum of its proper divisors (1).

489476173 is an equidigital number, since it uses as much as digits as its factorization.

489476173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 49.

The square root of 489476173 is about 22124.1084114140. The cubic root of 489476173 is about 788.0924832618.

The spelling of 489476173 in words is "four hundred eighty-nine million, four hundred seventy-six thousand, one hundred seventy-three".