82697514397 has 2 divisors, whose sum is σ = 82697514398. Its totient is φ = 82697514396.

The previous prime is 82697514379. The next prime is 82697514451. The reversal of 82697514397 is 79341579628.

Together with previous prime (82697514379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65992985881 + 16704528516 = 256891^2 + 129246^2 .

It is a cyclic number.

It is not a de Polignac number, because 82697514397 - 2¹⁹ = 82696990109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82697514337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41348757198 + 41348757199.

It is an arithmetic number, because the mean of its divisors is an integer number (41348757199).

Almost surely, 2^82697514397 is an apocalyptic number.

It is an amenable number.

82697514397 is a deficient number, since it is larger than the sum of its proper divisors (1).

82697514397 is an equidigital number, since it uses as much as digits as its factorization.

82697514397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22861440, while the sum is 61.

The spelling of 82697514397 in words is "eighty-two billion, six hundred ninety-seven million, five hundred fourteen thousand, three hundred ninety-seven".