8438963439 has 16 divisors (see below), whose sum is σ = 11323116000. Its totient is φ = 5590505856.

The previous prime is 8438963417. The next prime is 8438963471. The reversal of 8438963439 is 9343698348.

It is not a de Polignac number, because 8438963439 - 2⁷ = 8438963311 is a prime.

It is a super-2 number, since 2×8438963439² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8438963479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293017 + ... + 320525.

It is an arithmetic number, because the mean of its divisors is an integer number (707694750).

Almost surely, 2^8438963439 is an apocalyptic number.

8438963439 is a deficient number, since it is larger than the sum of its proper divisors (2884152561).

8438963439 is a wasteful number, since it uses less digits than its factorization.

8438963439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28154.

The product of its digits is 13436928, while the sum is 57.

The square root of 8438963439 is about 91863.8309619188. The cubic root of 8438963439 is about 2035.9309059265.

The spelling of 8438963439 in words is "eight billion, four hundred thirty-eight million, nine hundred sixty-three thousand, four hundred thirty-nine".