688035097 has 2 divisors, whose sum is σ = 688035098. Its totient is φ = 688035096.

The previous prime is 688035083. The next prime is 688035113. The reversal of 688035097 is 790530886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 435097881 + 252937216 = 20859^2 + 15904^2 .

It is a cyclic number.

It is not a de Polignac number, because 688035097 - 2⁷ = 688034969 is a prime.

It is not a weakly prime, because it can be changed into another prime (688035497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344017548 + 344017549.

It is an arithmetic number, because the mean of its divisors is an integer number (344017549).

Almost surely, 2^688035097 is an apocalyptic number.

It is an amenable number.

688035097 is a deficient number, since it is larger than the sum of its proper divisors (1).

688035097 is an equidigital number, since it uses as much as digits as its factorization.

688035097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 688035097 is about 26230.4231189663. The cubic root of 688035097 is about 882.8160036995.

The spelling of 688035097 in words is "six hundred eighty-eight million, thirty-five thousand, ninety-seven".