8394347986 has 8 divisors (see below), whose sum is σ = 12593156220. Its totient is φ = 4196629248.

The previous prime is 8394347959. The next prime is 8394347993. The reversal of 8394347986 is 6897434938.

It can be written as a sum of positive squares in 2 ways, for example, as 7364900761 + 1029447225 = 85819^2 + 32085^2 .

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

It is a super-2 number, since 2×8394347986² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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, 252831 + ... + 284098.

Almost surely, 2^8394347986 is an apocalyptic number.

8394347986 is a deficient number, since it is larger than the sum of its proper divisors (4198808234).

8394347986 is a wasteful number, since it uses less digits than its factorization.

8394347986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544748.

The product of its digits is 31352832, while the sum is 61.

The square root of 8394347986 is about 91620.6744463279. The cubic root of 8394347986 is about 2032.3366838381.

The spelling of 8394347986 in words is "eight billion, three hundred ninety-four million, three hundred forty-seven thousand, nine hundred eighty-six".