85944263 has 2 divisors, whose sum is σ = 85944264. Its totient is φ = 85944262.

The previous prime is 85944223. The next prime is 85944269. The reversal of 85944263 is 36244958.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85944263 - 2¹⁰ = 85943239 is a prime.

It is a super-2 number, since 2×85944263² = 14772832685226338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85944263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85944269) 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, 42972131 + 42972132.

It is an arithmetic number, because the mean of its divisors is an integer number (42972132).

Almost surely, 2^85944263 is an apocalyptic number.

85944263 is a deficient number, since it is larger than the sum of its proper divisors (1).

85944263 is an equidigital number, since it uses as much as digits as its factorization.

85944263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 41.

The square root of 85944263 is about 9270.6128707869. The cubic root of 85944263 is about 441.3051177313.

The spelling of 85944263 in words is "eighty-five million, nine hundred forty-four thousand, two hundred sixty-three".