655098097 has 2 divisors, whose sum is σ = 655098098. Its totient is φ = 655098096.

The previous prime is 655098091. The next prime is 655098109. The reversal of 655098097 is 790890556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342657121 + 312440976 = 18511^2 + 17676^2 .

It is a cyclic number.

It is not a de Polignac number, because 655098097 - 2¹¹ = 655096049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 655098097.

It is not a weakly prime, because it can be changed into another prime (655098091) 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, 327549048 + 327549049.

It is an arithmetic number, because the mean of its divisors is an integer number (327549049).

Almost surely, 2^655098097 is an apocalyptic number.

It is an amenable number.

655098097 is a deficient number, since it is larger than the sum of its proper divisors (1).

655098097 is an equidigital number, since it uses as much as digits as its factorization.

655098097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 655098097 is about 25594.8841958701. The cubic root of 655098097 is about 868.4979132154.

The spelling of 655098097 in words is "six hundred fifty-five million, ninety-eight thousand, ninety-seven".