489331849 has 2 divisors, whose sum is σ = 489331850. Its totient is φ = 489331848.

The previous prime is 489331841. The next prime is 489331861. The reversal of 489331849 is 948133984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 434097225 + 55234624 = 20835^2 + 7432^2 .

It is a cyclic number.

It is not a de Polignac number, because 489331849 - 2³ = 489331841 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (489331841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244665924 + 244665925.

It is an arithmetic number, because the mean of its divisors is an integer number (244665925).

Almost surely, 2^489331849 is an apocalyptic number.

It is an amenable number.

489331849 is a deficient number, since it is larger than the sum of its proper divisors (1).

489331849 is an equidigital number, since it uses as much as digits as its factorization.

489331849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 49.

The square root of 489331849 is about 22120.8464801870. The cubic root of 489331849 is about 788.0150182447.

The spelling of 489331849 in words is "four hundred eighty-nine million, three hundred thirty-one thousand, eight hundred forty-nine".