85098269 has 2 divisors, whose sum is σ = 85098270. Its totient is φ = 85098268.

The previous prime is 85098253. The next prime is 85098271. The reversal of 85098269 is 96289058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81631225 + 3467044 = 9035^2 + 1862^2 .

It is a cyclic number.

It is not a de Polignac number, because 85098269 - 2⁴ = 85098253 is a prime.

It is a super-2 number, since 2×85098269² = 14483430773592722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 85098271, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85098869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42549134 + 42549135.

It is an arithmetic number, because the mean of its divisors is an integer number (42549135).

Almost surely, 2^85098269 is an apocalyptic number.

It is an amenable number.

85098269 is a deficient number, since it is larger than the sum of its proper divisors (1).

85098269 is an equidigital number, since it uses as much as digits as its factorization.

85098269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 85098269 is about 9224.8723026392. The cubic root of 85098269 is about 439.8523419824.

The spelling of 85098269 in words is "eighty-five million, ninety-eight thousand, two hundred sixty-nine".