1989583713 has 12 divisors (see below), whose sum is σ = 3094908180. Its totient is φ = 1224359136.

The previous prime is 1989583711. The next prime is 1989583723. The reversal of 1989583713 is 3173859891.

It can be written as a sum of positive squares in 2 ways, for example, as 229613409 + 1759970304 = 15153^2 + 41952^2 .

It is not a de Polignac number, because 1989583713 - 2¹ = 1989583711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1989583713.

It is not an unprimeable number, because it can be changed into a prime (1989583711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8502378 + ... + 8502611.

It is an arithmetic number, because the mean of its divisors is an integer number (257909015).

Almost surely, 2^1989583713 is an apocalyptic number.

1989583713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1989583713 is a deficient number, since it is larger than the sum of its proper divisors (1105324467).

1989583713 is a wasteful number, since it uses less digits than its factorization.

1989583713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17005008 (or 17005005 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The square root of 1989583713 is about 44604.7498928085. The cubic root of 1989583713 is about 1257.7299584325.

The spelling of 1989583713 in words is "one billion, nine hundred eighty-nine million, five hundred eighty-three thousand, seven hundred thirteen".