5608438985 has 4 divisors (see below), whose sum is σ = 6730126788. Its totient is φ = 4486751184.

The previous prime is 5608438973. The next prime is 5608438987. The reversal of 5608438985 is 5898348065.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1819790281 + 3788648704 = 42659^2 + 61552^2 .

It is a cyclic number.

It is not a de Polignac number, because 5608438985 - 2¹² = 5608434889 is a prime.

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 5608438985.

It is not an unprimeable number, because it can be changed into a prime (5608438987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560843894 + ... + 560843903.

It is an arithmetic number, because the mean of its divisors is an integer number (1682531697).

Almost surely, 2^5608438985 is an apocalyptic number.

It is an amenable number.

5608438985 is a deficient number, since it is larger than the sum of its proper divisors (1121687803).

5608438985 is a wasteful number, since it uses less digits than its factorization.

5608438985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121687802.

The product of its (nonzero) digits is 8294400, while the sum is 56.

The square root of 5608438985 is about 74889.5118491234. The cubic root of 5608438985 is about 1776.6995806052.

The spelling of 5608438985 in words is "five billion, six hundred eight million, four hundred thirty-eight thousand, nine hundred eighty-five".