85889893 has 4 divisors (see below), whose sum is σ = 86032000. Its totient is φ = 85747788.

The previous prime is 85889887. The next prime is 85889917. The reversal of 85889893 is 39898858.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39898858 = 2 ⋅19949429.

It is a cyclic number.

It is not a de Polignac number, because 85889893 - 2¹⁷ = 85758821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85829893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70143 + ... + 71356.

It is an arithmetic number, because the mean of its divisors is an integer number (21508000).

Almost surely, 2^85889893 is an apocalyptic number.

It is an amenable number.

85889893 is a deficient number, since it is larger than the sum of its proper divisors (142107).

85889893 is a wasteful number, since it uses less digits than its factorization.

85889893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142106.

The product of its digits is 4976640, while the sum is 58.

The square root of 85889893 is about 9267.6800225299. The cubic root of 85889893 is about 441.2120387216.

It can be divided in two parts, 8588 and 9893, that added together give a palindrome (18481).

The spelling of 85889893 in words is "eighty-five million, eight hundred eighty-nine thousand, eight hundred ninety-three".