489377069 has 2 divisors, whose sum is σ = 489377070. Its totient is φ = 489377068.

The previous prime is 489377051. The next prime is 489377099. The reversal of 489377069 is 960773984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 487968100 + 1408969 = 22090^2 + 1187^2 .

It is a cyclic number.

It is not a de Polignac number, because 489377069 - 2⁸ = 489376813 is a prime.

It is a super-2 number, since 2×489377069² = 478979831326061522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 489377069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489377029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244688534 + 244688535.

It is an arithmetic number, because the mean of its divisors is an integer number (244688535).

Almost surely, 2^489377069 is an apocalyptic number.

It is an amenable number.

489377069 is a deficient number, since it is larger than the sum of its proper divisors (1).

489377069 is an equidigital number, since it uses as much as digits as its factorization.

489377069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The square root of 489377069 is about 22121.8685693591. The cubic root of 489377069 is about 788.0392914392.

The spelling of 489377069 in words is "four hundred eighty-nine million, three hundred seventy-seven thousand, sixty-nine".