85816834 has 8 divisors (see below), whose sum is σ = 129288060. Its totient is φ = 42720816.

The previous prime is 85816781. The next prime is 85816837. The reversal of 85816834 is 43861858.

It can be written as a sum of positive squares in 2 ways, for example, as 79299025 + 6517809 = 8905^2 + 2553^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×85816834³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (85816837) 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, 93229 + ... + 94144.

Almost surely, 2^85816834 is an apocalyptic number.

85816834 is a deficient number, since it is larger than the sum of its proper divisors (43471226).

85816834 is a wasteful number, since it uses less digits than its factorization.

85816834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187604.

The product of its digits is 184320, while the sum is 43.

The square root of 85816834 is about 9263.7375826391. The cubic root of 85816834 is about 441.0869031042.

The spelling of 85816834 in words is "eighty-five million, eight hundred sixteen thousand, eight hundred thirty-four".