85836810 has 32 divisors (see below), whose sum is σ = 213114240. Its totient is φ = 22100288.

The previous prime is 85836797. The next prime is 85836841. The reversal of 85836810 is 1863858.

It is a happy number.

It is a super-2 number, since 2×85836810² = 14735915901952200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48462 + ... + 50201.

It is an arithmetic number, because the mean of its divisors is an integer number (6659820).

Almost surely, 2^85836810 is an apocalyptic number.

85836810 is an abundant number, since it is smaller than the sum of its proper divisors (127277430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85836810 is a wasteful number, since it uses less digits than its factorization.

85836810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98702.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 85836810 is about 9264.8157024304. The cubic root of 85836810 is about 441.1211250938.

The spelling of 85836810 in words is "eighty-five million, eight hundred thirty-six thousand, eight hundred ten".