489297617 has 2 divisors, whose sum is σ = 489297618. Its totient is φ = 489297616.

The previous prime is 489297577. The next prime is 489297623. The reversal of 489297617 is 716792984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438944401 + 50353216 = 20951^2 + 7096^2 .

It is a cyclic number.

It is not a de Polignac number, because 489297617 - 2¹⁰ = 489296593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (489297637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244648808 + 244648809.

It is an arithmetic number, because the mean of its divisors is an integer number (244648809).

Almost surely, 2^489297617 is an apocalyptic number.

It is an amenable number.

489297617 is a deficient number, since it is larger than the sum of its proper divisors (1).

489297617 is an equidigital number, since it uses as much as digits as its factorization.

489297617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 53.

The square root of 489297617 is about 22120.0727168787. The cubic root of 489297617 is about 787.9966421950.

The spelling of 489297617 in words is "four hundred eighty-nine million, two hundred ninety-seven thousand, six hundred seventeen".