8989434783 has 16 divisors (see below), whose sum is σ = 15220207360. Its totient is φ = 5136819768.

The previous prime is 8989434749. The next prime is 8989434809. The reversal of 8989434783 is 3874349898.

8989434783 is a `hidden beast` number, since 89 + 89 + 4 + 3 + 478 + 3 = 666.

It is not a de Polignac number, because 8989434783 - 2¹⁰ = 8989433759 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8989434783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8989434733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23781385 + ... + 23781762.

It is an arithmetic number, because the mean of its divisors is an integer number (951262960).

Almost surely, 2^8989434783 is an apocalyptic number.

8989434783 is a deficient number, since it is larger than the sum of its proper divisors (6230772577).

8989434783 is a wasteful number, since it uses less digits than its factorization.

8989434783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47563163 (or 47563157 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The square root of 8989434783 is about 94812.6298707087. The cubic root of 8989434783 is about 2079.2695585298.

The spelling of 8989434783 in words is "eight billion, nine hundred eighty-nine million, four hundred thirty-four thousand, seven hundred eighty-three".