763318489 has 2 divisors, whose sum is σ = 763318490. Its totient is φ = 763318488.

The previous prime is 763318481. The next prime is 763318537. The reversal of 763318489 is 984813367.

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., 498182400 + 265136089 = 22320^2 + 16283^2 .

It is an emirp because it is prime and its reverse (984813367) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 763318489 - 2³ = 763318481 is a prime.

It is not a weakly prime, because it can be changed into another prime (763318481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 381659244 + 381659245.

It is an arithmetic number, because the mean of its divisors is an integer number (381659245).

Almost surely, 2^763318489 is an apocalyptic number.

It is an amenable number.

763318489 is a deficient number, since it is larger than the sum of its proper divisors (1).

763318489 is an equidigital number, since it uses as much as digits as its factorization.

763318489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The square root of 763318489 is about 27628.2190703635. The cubic root of 763318489 is about 913.9068390732.

The spelling of 763318489 in words is "seven hundred sixty-three million, three hundred eighteen thousand, four hundred eighty-nine".