2097739687 has 2 divisors, whose sum is σ = 2097739688. Its totient is φ = 2097739686.

The previous prime is 2097739681. The next prime is 2097739711. The reversal of 2097739687 is 7869377902.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2097739687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2097739681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1048869843 + 1048869844.

It is an arithmetic number, because the mean of its divisors is an integer number (1048869844).

Almost surely, 2^2097739687 is an apocalyptic number.

2097739687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2097739687 is an equidigital number, since it uses as much as digits as its factorization.

2097739687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8001504, while the sum is 58.

The square root of 2097739687 is about 45801.0882730967. The cubic root of 2097739687 is about 1280.1195540593.

The spelling of 2097739687 in words is "two billion, ninety-seven million, seven hundred thirty-nine thousand, six hundred eighty-seven".