99588409 has 2 divisors, whose sum is σ = 99588410. Its totient is φ = 99588408.

The previous prime is 99588383. The next prime is 99588421. The reversal of 99588409 is 90488599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49843600 + 49744809 = 7060^2 + 7053^2 .

It is a cyclic number.

It is not a de Polignac number, because 99588409 - 2²¹ = 97491257 is a prime.

It is not a weakly prime, because it can be changed into another prime (99588509) 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, 49794204 + 49794205.

It is an arithmetic number, because the mean of its divisors is an integer number (49794205).

Almost surely, 2^99588409 is an apocalyptic number.

It is an amenable number.

99588409 is a deficient number, since it is larger than the sum of its proper divisors (1).

99588409 is an equidigital number, since it uses as much as digits as its factorization.

99588409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 52.

The square root of 99588409 is about 9979.3992304146. The cubic root of 99588409 is about 463.5211956077.

The spelling of 99588409 in words is "ninety-nine million, five hundred eighty-eight thousand, four hundred nine".