489029789 has 2 divisors, whose sum is σ = 489029790. Its totient is φ = 489029788.

The previous prime is 489029747. The next prime is 489029831. The reversal of 489029789 is 987920984.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (489029747) and next prime (489029831).

It can be written as a sum of positive squares in only one way, i.e., 248314564 + 240715225 = 15758^2 + 15515^2 .

It is a cyclic number.

It is not a de Polignac number, because 489029789 - 2⁸ = 489029533 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 (489029719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244514894 + 244514895.

It is an arithmetic number, because the mean of its divisors is an integer number (244514895).

Almost surely, 2^489029789 is an apocalyptic number.

It is an amenable number.

489029789 is a deficient number, since it is larger than the sum of its proper divisors (1).

489029789 is an equidigital number, since it uses as much as digits as its factorization.

489029789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The square root of 489029789 is about 22114.0179298109. The cubic root of 489029789 is about 787.8528400888.

The spelling of 489029789 in words is "four hundred eighty-nine million, twenty-nine thousand, seven hundred eighty-nine".