85789133 has 4 divisors (see below), whose sum is σ = 85835100. Its totient is φ = 85743168.

The previous prime is 85789129. The next prime is 85789141. The reversal of 85789133 is 33198758.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33198758 = 2 ⋅16599379.

It can be written as a sum of positive squares in 2 ways, for example, as 68591524 + 17197609 = 8282^2 + 4147^2 .

It is a cyclic number.

It is not a de Polignac number, because 85789133 - 2² = 85789129 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 (85789933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20060 + ... + 23957.

It is an arithmetic number, because the mean of its divisors is an integer number (21458775).

Almost surely, 2^85789133 is an apocalyptic number.

It is an amenable number.

85789133 is a deficient number, since it is larger than the sum of its proper divisors (45967).

85789133 is a wasteful number, since it uses less digits than its factorization.

85789133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45966.

The product of its digits is 181440, while the sum is 44.

The square root of 85789133 is about 9262.2423310989. The cubic root of 85789133 is about 441.0394382008.

The spelling of 85789133 in words is "eighty-five million, seven hundred eighty-nine thousand, one hundred thirty-three".