8438114389 has 2 divisors, whose sum is σ = 8438114390. Its totient is φ = 8438114388.

The previous prime is 8438114381. The next prime is 8438114467. The reversal of 8438114389 is 9834118348.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8361639364 + 76475025 = 91442^2 + 8745^2 .

It is a cyclic number.

It is not a de Polignac number, because 8438114389 - 2³ = 8438114381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8438114381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4219057194 + 4219057195.

It is an arithmetic number, because the mean of its divisors is an integer number (4219057195).

Almost surely, 2^8438114389 is an apocalyptic number.

It is an amenable number.

8438114389 is a deficient number, since it is larger than the sum of its proper divisors (1).

8438114389 is an equidigital number, since it uses as much as digits as its factorization.

8438114389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 49.

The square root of 8438114389 is about 91859.2096036102. The cubic root of 8438114389 is about 2035.8626248269.

The spelling of 8438114389 in words is "eight billion, four hundred thirty-eight million, one hundred fourteen thousand, three hundred eighty-nine".