99988597 has 2 divisors, whose sum is σ = 99988598. Its totient is φ = 99988596.

The previous prime is 99988591. The next prime is 99988619. The reversal of 99988597 is 79588999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57138481 + 42850116 = 7559^2 + 6546^2 .

It is a cyclic number.

It is not a de Polignac number, because 99988597 - 2¹⁵ = 99955829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99988591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49994298 + 49994299.

It is an arithmetic number, because the mean of its divisors is an integer number (49994299).

Almost surely, 2^99988597 is an apocalyptic number.

It is an amenable number.

99988597 is a deficient number, since it is larger than the sum of its proper divisors (1).

99988597 is an equidigital number, since it uses as much as digits as its factorization.

99988597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14696640, while the sum is 64.

The square root of 99988597 is about 9999.4298337455. The cubic root of 99988597 is about 464.1412400115.

The spelling of 99988597 in words is "ninety-nine million, nine hundred eighty-eight thousand, five hundred ninety-seven".