1489489609 has 4 divisors (see below), whose sum is σ = 1497810960. Its totient is φ = 1481168260.

The previous prime is 1489489577. The next prime is 1489489627. The reversal of 1489489609 is 9069849841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1489489609 - 2⁵ = 1489489577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1489489669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4160407 + ... + 4160764.

It is an arithmetic number, because the mean of its divisors is an integer number (374452740).

Almost surely, 2^1489489609 is an apocalyptic number.

It is an amenable number.

1489489609 is a deficient number, since it is larger than the sum of its proper divisors (8321351).

1489489609 is an equidigital number, since it uses as much as digits as its factorization.

1489489609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8321350.

The product of its (nonzero) digits is 4478976, while the sum is 58.

The square root of 1489489609 is about 38593.9063713431. The cubic root of 1489489609 is about 1142.0343302842.

The spelling of 1489489609 in words is "one billion, four hundred eighty-nine million, four hundred eighty-nine thousand, six hundred nine".