98566997 has 2 divisors, whose sum is σ = 98566998. Its totient is φ = 98566996.

The previous prime is 98566987. The next prime is 98567017. The reversal of 98566997 is 79966589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84474481 + 14092516 = 9191^2 + 3754^2 .

It is a cyclic number.

It is not a de Polignac number, because 98566997 - 2⁴ = 98566981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98566967) 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, 49283498 + 49283499.

It is an arithmetic number, because the mean of its divisors is an integer number (49283499).

Almost surely, 2^98566997 is an apocalyptic number.

It is an amenable number.

98566997 is a deficient number, since it is larger than the sum of its proper divisors (1).

98566997 is an equidigital number, since it uses as much as digits as its factorization.

98566997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7348320, while the sum is 59.

The square root of 98566997 is about 9928.0913069935. The cubic root of 98566997 is about 461.9310707806.

The spelling of 98566997 in words is "ninety-eight million, five hundred sixty-six thousand, nine hundred ninety-seven".