5166389 has 2 divisors, whose sum is σ = 5166390. Its totient is φ = 5166388.

The previous prime is 5166383. The next prime is 5166391. The reversal of 5166389 is 9836615.

5166389 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2739025 + 2427364 = 1655^2 + 1558^2 .

It is a cyclic number.

It is not a de Polignac number, because 5166389 - 2⁴ = 5166373 is a prime.

Together with 5166391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5166383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2583194 + 2583195.

It is an arithmetic number, because the mean of its divisors is an integer number (2583195).

Almost surely, 2^5166389 is an apocalyptic number.

It is an amenable number.

5166389 is a deficient number, since it is larger than the sum of its proper divisors (1).

5166389 is an equidigital number, since it uses as much as digits as its factorization.

5166389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The square root of 5166389 is about 2272.9692034869. The cubic root of 5166389 is about 172.8737426206.

It can be divided in two parts, 5166 and 389, that added together give a palindrome (5555).

The spelling of 5166389 in words is "five million, one hundred sixty-six thousand, three hundred eighty-nine".