83981804 has 12 divisors (see below), whose sum is σ = 147081144. Its totient is φ = 41958624.

The previous prime is 83981801. The next prime is 83981813. The reversal of 83981804 is 40818938.

It is not an unprimeable number, because it can be changed into a prime (83981801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1649 + ... + 13064.

It is an arithmetic number, because the mean of its divisors is an integer number (12256762).

Almost surely, 2^83981804 is an apocalyptic number.

It is an amenable number.

83981804 is a deficient number, since it is larger than the sum of its proper divisors (63099340).

83981804 is a wasteful number, since it uses less digits than its factorization.

83981804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16144 (or 16142 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 83981804 is about 9164.1586629652. The cubic root of 83981804 is about 437.9202887963.

The spelling of 83981804 in words is "eighty-three million, nine hundred eighty-one thousand, eight hundred four".