8938000681 has 3 divisors (see below), whose sum is σ = 8938095223. Its totient is φ = 8937906140.

The previous prime is 8938000667. The next prime is 8938000717. The reversal of 8938000681 is 1860008398.

It is a happy number.

The square root of 8938000681 is 94541.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1860008398 = 2 ⋅930004199.

It can be written as a sum of positive squares in only one way, i.e., 927750681 + 8010250000 = 30459^2 + 89500^2 .

It is not a de Polignac number, because 8938000681 - 2¹⁹ = 8937476393 is a prime.

It is a super-2 number, since 2×8938000681² (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 (8938000381) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 47271 + ... + 141811.

Almost surely, 2^8938000681 is an apocalyptic number.

8938000681 is the 94541-st square number.

8938000681 is the 47271-st centered octagonal number.

It is an amenable number.

8938000681 is a deficient number, since it is larger than the sum of its proper divisors (94542).

8938000681 is an frugal number, since it uses more digits than its factorization.

8938000681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189082 (or 94541 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The cubic root of 8938000681 is about 2075.2963765753.

Multiplying 8938000681 by its product of nonzero digits (82944), we get a square (741353528484864 = 27227808²).

The spelling of 8938000681 in words is "eight billion, nine hundred thirty-eight million, six hundred eighty-one", and thus it is an aban number.