85767133 has 4 divisors (see below), whose sum is σ = 85791420. Its totient is φ = 85742848.

The previous prime is 85767131. The next prime is 85767163. The reversal of 85767133 is 33176758.

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 77915929 + 7851204 = 8827^2 + 2802^2 .

It is a cyclic number.

It is not a de Polignac number, because 85767133 - 2¹ = 85767131 is a prime.

It is a super-2 number, since 2×85767133² = 14712002206079378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85767131) 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, 5710 + ... + 14287.

It is an arithmetic number, because the mean of its divisors is an integer number (21447855).

Almost surely, 2^85767133 is an apocalyptic number.

It is an amenable number.

85767133 is a deficient number, since it is larger than the sum of its proper divisors (24287).

85767133 is a wasteful number, since it uses less digits than its factorization.

85767133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24286.

The product of its digits is 105840, while the sum is 40.

The square root of 85767133 is about 9261.0546375669. The cubic root of 85767133 is about 441.0017345242.

The spelling of 85767133 in words is "eighty-five million, seven hundred sixty-seven thousand, one hundred thirty-three".