8197939677 has 8 divisors (see below), whose sum is σ = 11283185920. Its totient is φ = 5288993280.

The previous prime is 8197939667. The next prime is 8197939681. The reversal of 8197939677 is 7769397918.

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

It is not a de Polignac number, because 8197939677 - 2⁴ = 8197939661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8197939667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44074852 + ... + 44075037.

It is an arithmetic number, because the mean of its divisors is an integer number (1410398240).

Almost surely, 2^8197939677 is an apocalyptic number.

It is an amenable number.

8197939677 is a deficient number, since it is larger than the sum of its proper divisors (3085246243).

8197939677 is a wasteful number, since it uses less digits than its factorization.

8197939677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88149923.

The product of its digits is 36006768, while the sum is 66.

The square root of 8197939677 is about 90542.4744360347. The cubic root of 8197939677 is about 2016.3607707268.

The spelling of 8197939677 in words is "eight billion, one hundred ninety-seven million, nine hundred thirty-nine thousand, six hundred seventy-seven".