8493888409 has 4 divisors (see below), whose sum is σ = 8513062416. Its totient is φ = 8474714404.

The previous prime is 8493888391. The next prime is 8493888413. The reversal of 8493888409 is 9048883948.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8493888409 - 2¹⁵ = 8493855641 is a prime.

It is a super-2 number, since 2×8493888409² (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 (8493888439) 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 3 ways as a sum of consecutive naturals, for example, 9586339 + ... + 9587224.

It is an arithmetic number, because the mean of its divisors is an integer number (2128265604).

Almost surely, 2^8493888409 is an apocalyptic number.

It is an amenable number.

8493888409 is a deficient number, since it is larger than the sum of its proper divisors (19174007).

8493888409 is a wasteful number, since it uses less digits than its factorization.

8493888409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19174006.

The product of its (nonzero) digits is 15925248, while the sum is 61.

The square root of 8493888409 is about 92162.2938570867. The cubic root of 8493888409 is about 2040.3383080636.

The spelling of 8493888409 in words is "eight billion, four hundred ninety-three million, eight hundred eighty-eight thousand, four hundred nine".