489034649 has 2 divisors, whose sum is σ = 489034650. Its totient is φ = 489034648.

The previous prime is 489034591. The next prime is 489034751. The reversal of 489034649 is 946430984.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 453988249 + 35046400 = 21307^2 + 5920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489034649 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (489030649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244517324 + 244517325.

It is an arithmetic number, because the mean of its divisors is an integer number (244517325).

Almost surely, 2^489034649 is an apocalyptic number.

It is an amenable number.

489034649 is a deficient number, since it is larger than the sum of its proper divisors (1).

489034649 is an equidigital number, since it uses as much as digits as its factorization.

489034649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 489034649 is about 22114.1278145895. The cubic root of 489034649 is about 787.8554499858.

The spelling of 489034649 in words is "four hundred eighty-nine million, thirty-four thousand, six hundred forty-nine".