5389343989 has 2 divisors, whose sum is σ = 5389343990. Its totient is φ = 5389343988.

The previous prime is 5389343951. The next prime is 5389344013. The reversal of 5389343989 is 9893439835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5018588964 + 370755025 = 70842^2 + 19255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5389343989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5389343929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2694671994 + 2694671995.

It is an arithmetic number, because the mean of its divisors is an integer number (2694671995).

Almost surely, 2^5389343989 is an apocalyptic number.

It is an amenable number.

5389343989 is a deficient number, since it is larger than the sum of its proper divisors (1).

5389343989 is an equidigital number, since it uses as much as digits as its factorization.

5389343989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25194240, while the sum is 61.

The square root of 5389343989 is about 73412.1515077715. The cubic root of 5389343989 is about 1753.2558694839.

The spelling of 5389343989 in words is "five billion, three hundred eighty-nine million, three hundred forty-three thousand, nine hundred eighty-nine".