1489856487 has 32 divisors (see below), whose sum is σ = 2376376320. Its totient is φ = 811784160.

The previous prime is 1489856477. The next prime is 1489856491. The reversal of 1489856487 is 7846589841.

It is not a de Polignac number, because 1489856487 - 2¹⁰ = 1489855463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1489856487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489856477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155214 + ... + 164532.

It is an arithmetic number, because the mean of its divisors is an integer number (74261760).

Almost surely, 2^1489856487 is an apocalyptic number.

1489856487 is a deficient number, since it is larger than the sum of its proper divisors (886519833).

1489856487 is a wasteful number, since it uses less digits than its factorization.

1489856487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9683.

The product of its digits is 15482880, while the sum is 60.

The square root of 1489856487 is about 38598.6591347420. The cubic root of 1489856487 is about 1142.1280878758.

The spelling of 1489856487 in words is "one billion, four hundred eighty-nine million, eight hundred fifty-six thousand, four hundred eighty-seven".