97800559 has 2 divisors, whose sum is σ = 97800560. Its totient is φ = 97800558.

The previous prime is 97800517. The next prime is 97800589. The reversal of 97800559 is 95500879.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97800559 - 2¹⁹ = 97276271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97800589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48900279 + 48900280.

It is an arithmetic number, because the mean of its divisors is an integer number (48900280).

Almost surely, 2^97800559 is an apocalyptic number.

97800559 is a deficient number, since it is larger than the sum of its proper divisors (1).

97800559 is an equidigital number, since it uses as much as digits as its factorization.

97800559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 43.

The square root of 97800559 is about 9889.4165146383. The cubic root of 97800559 is about 460.7306582877.

The spelling of 97800559 in words is "ninety-seven million, eight hundred thousand, five hundred fifty-nine".