8343521873 has 8 divisors (see below), whose sum is σ = 8534828736. Its totient is φ = 8153470000.

The previous prime is 8343521869. The next prime is 8343521887. The reversal of 8343521873 is 3781253438.

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 8343521873 - 2² = 8343521869 is a prime.

It is a super-2 number, since 2×8343521873² (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 (8343521863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300293 + ... + 326898.

It is an arithmetic number, because the mean of its divisors is an integer number (1066853592).

Almost surely, 2^8343521873 is an apocalyptic number.

It is an amenable number.

8343521873 is a deficient number, since it is larger than the sum of its proper divisors (191306863).

8343521873 is a wasteful number, since it uses less digits than its factorization.

8343521873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627495.

The product of its digits is 483840, while the sum is 44.

The square root of 8343521873 is about 91342.8808008594. The cubic root of 8343521873 is about 2028.2265787723.

The spelling of 8343521873 in words is "eight billion, three hundred forty-three million, five hundred twenty-one thousand, eight hundred seventy-three".