4989703689 has 18 divisors (see below), whose sum is σ = 7224136010. Its totient is φ = 3318738336.

The previous prime is 4989703687. The next prime is 4989703717. The reversal of 4989703689 is 9863079894.

It can be written as a sum of positive squares in only one way, i.e., 4961793600 + 27910089 = 70440^2 + 5283^2 .

It is not a de Polignac number, because 4989703689 - 2¹ = 4989703687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4989703687) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3100317 + ... + 3101925.

Almost surely, 2^4989703689 is an apocalyptic number.

It is an amenable number.

4989703689 is a deficient number, since it is larger than the sum of its proper divisors (2234432321).

4989703689 is an equidigital number, since it uses as much as digits as its factorization.

4989703689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789 (or 2199 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The square root of 4989703689 is about 70637.8346851034. The cubic root of 4989703689 is about 1708.8013771152.

The spelling of 4989703689 in words is "four billion, nine hundred eighty-nine million, seven hundred three thousand, six hundred eighty-nine".