83803640 has 32 divisors (see below), whose sum is σ = 189034560. Its totient is φ = 33436800.

The previous prime is 83803637. The next prime is 83803663. The reversal of 83803640 is 4630838.

It is a junction number, because it is equal to n+sod(n) for n = 83803597 and 83803606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14810 + ... + 19670.

It is an arithmetic number, because the mean of its divisors is an integer number (5907330).

Almost surely, 2^83803640 is an apocalyptic number.

It is an amenable number.

83803640 is an abundant number, since it is smaller than the sum of its proper divisors (105230920).

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

83803640 is a wasteful number, since it uses less digits than its factorization.

83803640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5303 (or 5299 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 83803640 is about 9154.4328060235. The cubic root of 83803640 is about 437.6103928229.

The spelling of 83803640 in words is "eighty-three million, eight hundred three thousand, six hundred forty".