489660937 has 2 divisors, whose sum is σ = 489660938. Its totient is φ = 489660936.

The previous prime is 489660931. The next prime is 489660949. The reversal of 489660937 is 739066984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 488012281 + 1648656 = 22091^2 + 1284^2 .

It is a cyclic number.

It is not a de Polignac number, because 489660937 - 2¹¹ = 489658889 is a prime.

It is not a weakly prime, because it can be changed into another prime (489660931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244830468 + 244830469.

It is an arithmetic number, because the mean of its divisors is an integer number (244830469).

Almost surely, 2^489660937 is an apocalyptic number.

It is an amenable number.

489660937 is a deficient number, since it is larger than the sum of its proper divisors (1).

489660937 is an equidigital number, since it uses as much as digits as its factorization.

489660937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 489660937 is about 22128.2836433375. The cubic root of 489660937 is about 788.1916319777.

The spelling of 489660937 in words is "four hundred eighty-nine million, six hundred sixty thousand, nine hundred thirty-seven".