99558097 has 2 divisors, whose sum is σ = 99558098. Its totient is φ = 99558096.

The previous prime is 99558071. The next prime is 99558113. The reversal of 99558097 is 79085599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94400656 + 5157441 = 9716^2 + 2271^2 .

It is an emirp because it is prime and its reverse (79085599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99558097 - 2²³ = 91169489 is a prime.

It is a super-2 number, since 2×99558097² = 19823629356522818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99558497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49779048 + 49779049.

It is an arithmetic number, because the mean of its divisors is an integer number (49779049).

Almost surely, 2^99558097 is an apocalyptic number.

It is an amenable number.

99558097 is a deficient number, since it is larger than the sum of its proper divisors (1).

99558097 is an equidigital number, since it uses as much as digits as its factorization.

99558097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1020600, while the sum is 52.

The square root of 99558097 is about 9977.8803861341. The cubic root of 99558097 is about 463.4741630920.

The spelling of 99558097 in words is "ninety-nine million, five hundred fifty-eight thousand, ninety-seven".