99558587 has 2 divisors, whose sum is σ = 99558588. Its totient is φ = 99558586.

The previous prime is 99558541. The next prime is 99558593. The reversal of 99558587 is 78585599.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99558587 - 2⁶ = 99558523 is a prime.

It is not a weakly prime, because it can be changed into another prime (99558187) 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, 49779293 + 49779294.

It is an arithmetic number, because the mean of its divisors is an integer number (49779294).

Almost surely, 2^99558587 is an apocalyptic number.

99558587 is a deficient number, since it is larger than the sum of its proper divisors (1).

99558587 is an equidigital number, since it uses as much as digits as its factorization.

99558587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536000, while the sum is 56.

The square root of 99558587 is about 9977.9049404171. The cubic root of 99558587 is about 463.4749234587.

The spelling of 99558587 in words is "ninety-nine million, five hundred fifty-eight thousand, five hundred eighty-seven".