5318989 has 4 divisors (see below), whose sum is σ = 5728156. Its totient is φ = 4909824.

The previous prime is 5318981. The next prime is 5319007. The reversal of 5318989 is 9898135.

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 2941225 + 2377764 = 1715^2 + 1542^2 .

It is a cyclic number.

It is not a de Polignac number, because 5318989 - 2³ = 5318981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5318981) 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, 204564 + ... + 204589.

It is an arithmetic number, because the mean of its divisors is an integer number (1432039).

Almost surely, 2^5318989 is an apocalyptic number.

It is an amenable number.

5318989 is a deficient number, since it is larger than the sum of its proper divisors (409167).

5318989 is a wasteful number, since it uses less digits than its factorization.

5318989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409166.

The product of its digits is 77760, while the sum is 43.

The square root of 5318989 is about 2306.2933464761. The cubic root of 5318989 is about 174.5593156918.

The spelling of 5318989 in words is "five million, three hundred eighteen thousand, nine hundred eighty-nine".