86982497897 has 2 divisors, whose sum is σ = 86982497898. Its totient is φ = 86982497896.

The previous prime is 86982497881. The next prime is 86982497909. The reversal of 86982497897 is 79879428968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78881777881 + 8100720016 = 280859^2 + 90004^2 .

It is a cyclic number.

It is not a de Polignac number, because 86982497897 - 2⁴ = 86982497881 is a prime.

It is not a weakly prime, because it can be changed into another prime (86982497867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43491248948 + 43491248949.

It is an arithmetic number, because the mean of its divisors is an integer number (43491248949).

Almost surely, 2^86982497897 is an apocalyptic number.

It is an amenable number.

86982497897 is a deficient number, since it is larger than the sum of its proper divisors (1).

86982497897 is an equidigital number, since it uses as much as digits as its factorization.

86982497897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 877879296, while the sum is 77.

The spelling of 86982497897 in words is "eighty-six billion, nine hundred eighty-two million, four hundred ninety-seven thousand, eight hundred ninety-seven".