8198906377 has 4 divisors (see below), whose sum is σ = 8218381636. Its totient is φ = 8179431120.

The previous prime is 8198906371. The next prime is 8198906389. The reversal of 8198906377 is 7736098918.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3919260816 + 4279645561 = 62604^2 + 65419^2 .

It is a cyclic number.

It is not a de Polignac number, because 8198906377 - 2¹⁹ = 8198382089 is a prime.

It is a super-2 number, since 2×8198906377² (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 (8198906371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9736998 + ... + 9737839.

It is an arithmetic number, because the mean of its divisors is an integer number (2054595409).

Almost surely, 2^8198906377 is an apocalyptic number.

It is an amenable number.

8198906377 is a deficient number, since it is larger than the sum of its proper divisors (19475259).

8198906377 is a wasteful number, since it uses less digits than its factorization.

8198906377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19475258.

The product of its (nonzero) digits is 4572288, while the sum is 58.

The square root of 8198906377 is about 90547.8126571813. The cubic root of 8198906377 is about 2016.4400239465.

The spelling of 8198906377 in words is "eight billion, one hundred ninety-eight million, nine hundred six thousand, three hundred seventy-seven".