7882116397 has 2 divisors, whose sum is σ = 7882116398. Its totient is φ = 7882116396.

The previous prime is 7882116379. The next prime is 7882116413. The reversal of 7882116397 is 7936112887.

Together with previous prime (7882116379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7843936356 + 38180041 = 88566^2 + 6179^2 .

It is a cyclic number.

It is not a de Polignac number, because 7882116397 - 2¹⁹ = 7881592109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7882116367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3941058198 + 3941058199.

It is an arithmetic number, because the mean of its divisors is an integer number (3941058199).

Almost surely, 2^7882116397 is an apocalyptic number.

It is an amenable number.

7882116397 is a deficient number, since it is larger than the sum of its proper divisors (1).

7882116397 is an equidigital number, since it uses as much as digits as its factorization.

7882116397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 52.

The square root of 7882116397 is about 88781.2840468080. The cubic root of 7882116397 is about 1990.1277155981.

The spelling of 7882116397 in words is "seven billion, eight hundred eighty-two million, one hundred sixteen thousand, three hundred ninety-seven".