2697317849 has 2 divisors, whose sum is σ = 2697317850. Its totient is φ = 2697317848.

The previous prime is 2697317789. The next prime is 2697317873. The reversal of 2697317849 is 9487137962.

2697317849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1363972624 + 1333345225 = 36932^2 + 36515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2697317849 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2697317794 and 2697317803.

It is not a weakly prime, because it can be changed into another prime (2697317899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1348658924 + 1348658925.

It is an arithmetic number, because the mean of its divisors is an integer number (1348658925).

Almost surely, 2^2697317849 is an apocalyptic number.

It is an amenable number.

2697317849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2697317849 is an equidigital number, since it uses as much as digits as its factorization.

2697317849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 56.

The square root of 2697317849 is about 51935.7088042514. The cubic root of 2697317849 is about 1392.0154068694.

The spelling of 2697317849 in words is "two billion, six hundred ninety-seven million, three hundred seventeen thousand, eight hundred forty-nine".