5231389 has 2 divisors, whose sum is σ = 5231390. Its totient is φ = 5231388.

The previous prime is 5231371. The next prime is 5231411. The reversal of 5231389 is 9831325.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3496900 + 1734489 = 1870^2 + 1317^2 .

It is a cyclic number.

It is not a de Polignac number, because 5231389 - 2⁹ = 5230877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5231389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5231309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2615694 + 2615695.

It is an arithmetic number, because the mean of its divisors is an integer number (2615695).

Almost surely, 2^5231389 is an apocalyptic number.

It is an amenable number.

5231389 is a deficient number, since it is larger than the sum of its proper divisors (1).

5231389 is an equidigital number, since it uses as much as digits as its factorization.

5231389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 31.

The square root of 5231389 is about 2287.2229886917. Note that the first 3 decimals coincide. The cubic root of 5231389 is about 173.5957166045.

The spelling of 5231389 in words is "five million, two hundred thirty-one thousand, three hundred eighty-nine".