489934957 has 2 divisors, whose sum is σ = 489934958. Its totient is φ = 489934956.

The previous prime is 489934933. The next prime is 489934999. The reversal of 489934957 is 759439984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 479215881 + 10719076 = 21891^2 + 3274^2 .

It is a cyclic number.

It is not a de Polignac number, because 489934957 - 2¹¹ = 489932909 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489934457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244967478 + 244967479.

It is an arithmetic number, because the mean of its divisors is an integer number (244967479).

Almost surely, 2^489934957 is an apocalyptic number.

It is an amenable number.

489934957 is a deficient number, since it is larger than the sum of its proper divisors (1).

489934957 is an equidigital number, since it uses as much as digits as its factorization.

489934957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 58.

The square root of 489934957 is about 22134.4744008074. The cubic root of 489934957 is about 788.3386316522.

The spelling of 489934957 in words is "four hundred eighty-nine million, nine hundred thirty-four thousand, nine hundred fifty-seven".