85359893 has 2 divisors, whose sum is σ = 85359894. Its totient is φ = 85359892.

The previous prime is 85359871. The next prime is 85359917. The reversal of 85359893 is 39895358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68525284 + 16834609 = 8278^2 + 4103^2 .

It is a cyclic number.

It is not a de Polignac number, because 85359893 - 2¹² = 85355797 is a prime.

It is a super-2 number, since 2×85359893² = 14572622665942898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85359823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42679946 + 42679947.

It is an arithmetic number, because the mean of its divisors is an integer number (42679947).

Almost surely, 2^85359893 is an apocalyptic number.

It is an amenable number.

85359893 is a deficient number, since it is larger than the sum of its proper divisors (1).

85359893 is an equidigital number, since it uses as much as digits as its factorization.

85359893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1166400, while the sum is 50.

The square root of 85359893 is about 9239.0417793189. The cubic root of 85359893 is about 440.3026378683.

The spelling of 85359893 in words is "eighty-five million, three hundred fifty-nine thousand, eight hundred ninety-three".