489359173 has 2 divisors, whose sum is σ = 489359174. Its totient is φ = 489359172.

The previous prime is 489359153. The next prime is 489359177. The reversal of 489359173 is 371953984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 431933089 + 57426084 = 20783^2 + 7578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489359173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489359177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244679586 + 244679587.

It is an arithmetic number, because the mean of its divisors is an integer number (244679587).

Almost surely, 2^489359173 is an apocalyptic number.

It is an amenable number.

489359173 is a deficient number, since it is larger than the sum of its proper divisors (1).

489359173 is an equidigital number, since it uses as much as digits as its factorization.

489359173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The square root of 489359173 is about 22121.4640790342. The cubic root of 489359173 is about 788.0296854020.

The spelling of 489359173 in words is "four hundred eighty-nine million, three hundred fifty-nine thousand, one hundred seventy-three".