489601837 has 2 divisors, whose sum is σ = 489601838. Its totient is φ = 489601836.

The previous prime is 489601813. The next prime is 489601859. The reversal of 489601837 is 738106984.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320445801 + 169156036 = 17901^2 + 13006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489601837 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 (489631837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244800918 + 244800919.

It is an arithmetic number, because the mean of its divisors is an integer number (244800919).

Almost surely, 2^489601837 is an apocalyptic number.

It is an amenable number.

489601837 is a deficient number, since it is larger than the sum of its proper divisors (1).

489601837 is an equidigital number, since it uses as much as digits as its factorization.

489601837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 489601837 is about 22126.9482080110. The cubic root of 489601837 is about 788.1599202386.

The spelling of 489601837 in words is "four hundred eighty-nine million, six hundred one thousand, eight hundred thirty-seven".