7898943361 has 2 divisors, whose sum is σ = 7898943362. Its totient is φ = 7898943360.

The previous prime is 7898943341. The next prime is 7898943391. The reversal of 7898943361 is 1633498987.

7898943361 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6471237136 + 1427706225 = 80444^2 + 37785^2 .

It is a cyclic number.

It is not a de Polignac number, because 7898943361 - 2⁷ = 7898943233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7898943296 and 7898943305.

It is not a weakly prime, because it can be changed into another prime (7898943301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3949471680 + 3949471681.

It is an arithmetic number, because the mean of its divisors is an integer number (3949471681).

Almost surely, 2^7898943361 is an apocalyptic number.

It is an amenable number.

7898943361 is a deficient number, since it is larger than the sum of its proper divisors (1).

7898943361 is an equidigital number, since it uses as much as digits as its factorization.

7898943361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 58.

The square root of 7898943361 is about 88875.9999156128. Note that the first 4 decimals coincide. The cubic root of 7898943361 is about 1991.5429025743.

The spelling of 7898943361 in words is "seven billion, eight hundred ninety-eight million, nine hundred forty-three thousand, three hundred sixty-one".