2698321697 has 2 divisors, whose sum is σ = 2698321698. Its totient is φ = 2698321696.

The previous prime is 2698321693. The next prime is 2698321699. The reversal of 2698321697 is 7961238962.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2320252561 + 378069136 = 48169^2 + 19444^2 .

It is a cyclic number.

It is not a de Polignac number, because 2698321697 - 2² = 2698321693 is a prime.

Together with 2698321699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2698321693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1349160848 + 1349160849.

It is an arithmetic number, because the mean of its divisors is an integer number (1349160849).

Almost surely, 2^2698321697 is an apocalyptic number.

It is an amenable number.

2698321697 is a deficient number, since it is larger than the sum of its proper divisors (1).

2698321697 is an equidigital number, since it uses as much as digits as its factorization.

2698321697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 53.

The square root of 2698321697 is about 51945.3722385354. The cubic root of 2698321697 is about 1392.1880720434.

The spelling of 2698321697 in words is "two billion, six hundred ninety-eight million, three hundred twenty-one thousand, six hundred ninety-seven".