85944269 has 2 divisors, whose sum is σ = 85944270. Its totient is φ = 85944268.

The previous prime is 85944263. The next prime is 85944281. The reversal of 85944269 is 96244958.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70341769 + 15602500 = 8387^2 + 3950^2 .

It is a cyclic number.

It is not a de Polignac number, because 85944269 - 2⁸ = 85944013 is a prime.

It is a super-2 number, since 2×85944269² = 14772834747888722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85944263) 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, 42972134 + 42972135.

It is an arithmetic number, because the mean of its divisors is an integer number (42972135).

Almost surely, 2^85944269 is an apocalyptic number.

It is an amenable number.

85944269 is a deficient number, since it is larger than the sum of its proper divisors (1).

85944269 is an equidigital number, since it uses as much as digits as its factorization.

85944269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 47.

The square root of 85944269 is about 9270.6131943901. The cubic root of 85944269 is about 441.3051280008.

The spelling of 85944269 in words is "eighty-five million, nine hundred forty-four thousand, two hundred sixty-nine".