99986269 has 2 divisors, whose sum is σ = 99986270.
Its totient is φ = 99986268.
The previous prime is 99986251. The next prime is 99986273. The reversal of 99986269 is 96268999.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 92352100 + 7634169 = 9610^2 + 2763^2
It is an emirp because it is prime and its reverse (96268999) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 99986269 - 27 = 99986141 is a prime.
It is a super-2 number, since 2×999862692 = 19994507977080722, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (99986279) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49993134 + 49993135.
It is an arithmetic number, because the mean of its divisors is an integer number (49993135).
Almost surely, 299986269 is an apocalyptic number.
It is an amenable number.
99986269 is a deficient number, since it is larger than the sum of its proper divisors (1).
99986269 is an equidigital number, since it uses as much as digits as its factorization.
99986269 is an evil number, because the sum of its binary digits is even.
The product of its digits is 3779136, while the sum is 58.
The square root of 99986269 is about 9999.3134264308.
The cubic root of 99986269 is about 464.1376378367.
The spelling of 99986269 in words is "ninety-nine million, nine hundred eighty-six thousand, two hundred sixty-nine".