99986351 has 2 divisors, whose sum is σ = 99986352.
Its totient is φ = 99986350.
The previous prime is 99986347. The next prime is 99986353. The reversal of 99986351 is 15368999.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 99986351 - 22 = 99986347 is a prime.
Together with 99986353, it forms a pair of twin primes.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 99986351.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (99986353) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49993175 + 49993176.
It is an arithmetic number, because the mean of its divisors is an integer number (49993176).
Almost surely, 299986351 is an apocalyptic number.
99986351 is a deficient number, since it is larger than the sum of its proper divisors (1).
99986351 is an equidigital number, since it uses as much as digits as its factorization.
99986351 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 524880, while the sum is 50.
The square root of 99986351 is about 9999.3175267115.
The cubic root of 99986351 is about 464.1377647184.
The spelling of 99986351 in words is "ninety-nine million, nine hundred eighty-six thousand, three hundred fifty-one".