1489854589 has 4 divisors (see below), whose sum is σ = 1489963356. Its totient is φ = 1489745824.

The previous prime is 1489854493. The next prime is 1489854623. The reversal of 1489854589 is 9854589841.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 205205625 + 1284648964 = 14325^2 + 35842^2 .

It is a cyclic number.

It is not a de Polignac number, because 1489854589 - 2¹¹ = 1489852541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489852589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30274 + ... + 62419.

It is an arithmetic number, because the mean of its divisors is an integer number (372490839).

Almost surely, 2^1489854589 is an apocalyptic number.

It is an amenable number.

1489854589 is a deficient number, since it is larger than the sum of its proper divisors (108767).

1489854589 is an equidigital number, since it uses as much as digits as its factorization.

1489854589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108766.

The product of its digits is 16588800, while the sum is 61.

The square root of 1489854589 is about 38598.6345483878. The cubic root of 1489854589 is about 1142.1276028715.

The spelling of 1489854589 in words is "one billion, four hundred eighty-nine million, eight hundred fifty-four thousand, five hundred eighty-nine".