8354389 has 2 divisors, whose sum is σ = 8354390. Its totient is φ = 8354388.

The previous prime is 8354387. The next prime is 8354413. The reversal of 8354389 is 9834538.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6275025 + 2079364 = 2505^2 + 1442^2 .

It is a cyclic number.

It is not a de Polignac number, because 8354389 - 2¹ = 8354387 is a prime.

Together with 8354387, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8354387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4177194 + 4177195.

It is an arithmetic number, because the mean of its divisors is an integer number (4177195).

Almost surely, 2^8354389 is an apocalyptic number.

It is an amenable number.

8354389 is a deficient number, since it is larger than the sum of its proper divisors (1).

8354389 is an equidigital number, since it uses as much as digits as its factorization.

8354389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 8354389 is about 2890.3959936313. The cubic root of 8354389 is about 202.9106759983.

The spelling of 8354389 in words is "eight million, three hundred fifty-four thousand, three hundred eighty-nine".