8680000397 has 2 divisors, whose sum is σ = 8680000398. Its totient is φ = 8680000396.

The previous prime is 8680000391. The next prime is 8680000423. The reversal of 8680000397 is 7930000868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8235381001 + 444619396 = 90749^2 + 21086^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8680000397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8680000391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4340000198 + 4340000199.

It is an arithmetic number, because the mean of its divisors is an integer number (4340000199).

Almost surely, 2^8680000397 is an apocalyptic number.

It is an amenable number.

8680000397 is a deficient number, since it is larger than the sum of its proper divisors (1).

8680000397 is an equidigital number, since it uses as much as digits as its factorization.

8680000397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 8680000397 is about 93166.5197214107. The cubic root of 8680000397 is about 2055.1329152352.

The spelling of 8680000397 in words is "eight billion, six hundred eighty million, three hundred ninety-seven", and thus it is an aban number.