85228093 has 4 divisors (see below), whose sum is σ = 85376380. Its totient is φ = 85079808.

The previous prime is 85228079. The next prime is 85228153. The reversal of 85228093 is 39082258.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59644729 + 25583364 = 7723^2 + 5058^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85228093 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 (85225093) 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, 73278 + ... + 74431.

It is an arithmetic number, because the mean of its divisors is an integer number (21344095).

Almost surely, 2^85228093 is an apocalyptic number.

It is an amenable number.

85228093 is a deficient number, since it is larger than the sum of its proper divisors (148287).

85228093 is a wasteful number, since it uses less digits than its factorization.

85228093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148286.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 85228093 is about 9231.9062495240. The cubic root of 85228093 is about 440.0759046046.

The spelling of 85228093 in words is "eighty-five million, two hundred twenty-eight thousand, ninety-three".