85804836 has 48 divisors (see below), whose sum is σ = 226968000. Its totient is φ = 25011072.

The previous prime is 85804793. The next prime is 85804837. The reversal of 85804836 is 63840858.

It is not an unprimeable number, because it can be changed into a prime (85804837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11511 + ... + 17438.

It is an arithmetic number, because the mean of its divisors is an integer number (4728500).

Almost surely, 2^85804836 is an apocalyptic number.

It is an amenable number.

85804836 is an abundant number, since it is smaller than the sum of its proper divisors (141163164).

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

85804836 is a wasteful number, since it uses less digits than its factorization.

85804836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28988 (or 28986 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 85804836 is about 9263.0899812104. The cubic root of 85804836 is about 441.0663461146.

The spelling of 85804836 in words is "eighty-five million, eight hundred four thousand, eight hundred thirty-six".