4989020689 has 27 divisors (see below), whose sum is σ = 5425489083. Its totient is φ = 4587189552.

The previous prime is 4989020683. The next prime is 4989020693. The reversal of 4989020689 is 9860209894.

The square root of 4989020689 is 70633.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4464244225 + 524776464 = 66815^2 + 22908^2 .

It is not a de Polignac number, because 4989020689 - 2¹¹ = 4989018641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4989020683) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 60108642 + ... + 60108724.

Almost surely, 2^4989020689 is an apocalyptic number.

4989020689 is the 70633-rd square number.

4989020689 is the 35317-th centered octagonal number.

It is an amenable number.

4989020689 is a deficient number, since it is larger than the sum of its proper divisors (436468394).

4989020689 is an frugal number, since it uses more digits than its factorization.

4989020689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 55.

The cubic root of 4989020689 is about 1708.7234055782.

The spelling of 4989020689 in words is "four billion, nine hundred eighty-nine million, twenty thousand, six hundred eighty-nine".