8084644385 has 8 divisors (see below), whose sum is σ = 9706177320. Its totient is φ = 6464646144.

The previous prime is 8084644361. The next prime is 8084644391. The reversal of 8084644385 is 5834464808.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1432773904 + 6651870481 = 37852^2 + 81559^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8084644385 - 2²⁶ = 8017535521 is a prime.

It is a super-2 number, since 2×8084644385² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372050 + ... + 393179.

It is an arithmetic number, because the mean of its divisors is an integer number (1213272165).

Almost surely, 2^8084644385 is an apocalyptic number.

It is an amenable number.

8084644385 is a deficient number, since it is larger than the sum of its proper divisors (1621532935).

8084644385 is a wasteful number, since it uses less digits than its factorization.

8084644385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767347.

The product of its (nonzero) digits is 2949120, while the sum is 50.

The square root of 8084644385 is about 89914.6505581821. The cubic root of 8084644385 is about 2007.0289666245.

The spelling of 8084644385 in words is "eight billion, eighty-four million, six hundred forty-four thousand, three hundred eighty-five".