83820804 has 48 divisors (see below), whose sum is σ = 199741248. Its totient is φ = 27353088.

The previous prime is 83820773. The next prime is 83820811. The reversal of 83820804 is 40802838.

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, 124212 + ... + 124884.

It is an arithmetic number, because the mean of its divisors is an integer number (4161276).

Almost surely, 2^83820804 is an apocalyptic number.

It is an amenable number.

83820804 is an abundant number, since it is smaller than the sum of its proper divisors (115920444).

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

83820804 is a wasteful number, since it uses less digits than its factorization.

83820804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884 (or 882 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 83820804 is about 9155.3702273584. The cubic root of 83820804 is about 437.6402667522.

The spelling of 83820804 in words is "eighty-three million, eight hundred twenty thousand, eight hundred four".