8439804481 has 8 divisors (see below), whose sum is σ = 8491046184. Its totient is φ = 8388591360.

The previous prime is 8439804473. The next prime is 8439804493. The reversal of 8439804481 is 1844089348.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1212084225 + 7227720256 = 34815^2 + 85016^2 .

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 8439804481 - 2³ = 8439804473 is a prime.

It is a super-2 number, since 2×8439804481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8439804181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040361 + ... + 1048441.

It is an arithmetic number, because the mean of its divisors is an integer number (1061380773).

Almost surely, 2^8439804481 is an apocalyptic number.

It is an amenable number.

8439804481 is a deficient number, since it is larger than the sum of its proper divisors (51241703).

8439804481 is a wasteful number, since it uses less digits than its factorization.

8439804481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14291.

The product of its (nonzero) digits is 884736, while the sum is 49.

The square root of 8439804481 is about 91868.4085036853. The cubic root of 8439804481 is about 2035.9985385030.

The spelling of 8439804481 in words is "eight billion, four hundred thirty-nine million, eight hundred four thousand, four hundred eighty-one".