1689096797 has 2 divisors, whose sum is σ = 1689096798. Its totient is φ = 1689096796.

The previous prime is 1689096779. The next prime is 1689096817. The reversal of 1689096797 is 7976909861.

It is a happy number.

Together with previous prime (1689096779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1043225401 + 645871396 = 32299^2 + 25414^2 .

It is a cyclic number.

It is not a de Polignac number, because 1689096797 - 2¹⁰ = 1689095773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1689096737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 844548398 + 844548399.

It is an arithmetic number, because the mean of its divisors is an integer number (844548399).

Almost surely, 2^1689096797 is an apocalyptic number.

It is an amenable number.

1689096797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1689096797 is an equidigital number, since it uses as much as digits as its factorization.

1689096797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10287648, while the sum is 62.

The square root of 1689096797 is about 41098.6228114763. The cubic root of 1689096797 is about 1190.9261901840.

The spelling of 1689096797 in words is "one billion, six hundred eighty-nine million, ninety-six thousand, seven hundred ninety-seven".