489517229 has 2 divisors, whose sum is σ = 489517230. Its totient is φ = 489517228.

The previous prime is 489517219. The next prime is 489517271. The reversal of 489517229 is 922715984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 469892329 + 19624900 = 21677^2 + 4430^2 .

It is a cyclic number.

It is not a de Polignac number, because 489517229 - 2²⁰ = 488468653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489517219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244758614 + 244758615.

It is an arithmetic number, because the mean of its divisors is an integer number (244758615).

Almost surely, 2^489517229 is an apocalyptic number.

It is an amenable number.

489517229 is a deficient number, since it is larger than the sum of its proper divisors (1).

489517229 is an equidigital number, since it uses as much as digits as its factorization.

489517229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 47.

The square root of 489517229 is about 22125.0362485579. The cubic root of 489517229 is about 788.1145170346.

The spelling of 489517229 in words is "four hundred eighty-nine million, five hundred seventeen thousand, two hundred twenty-nine".