83803816 has 16 divisors (see below), whose sum is σ = 161379540. Its totient is φ = 40769280.

The previous prime is 83803763. The next prime is 83803817. The reversal of 83803816 is 61830838.

It can be written as a sum of positive squares in 2 ways, for example, as 83795716 + 8100 = 9154^2 + 90^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (83803817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141265 + ... + 141856.

Almost surely, 2^83803816 is an apocalyptic number.

It is an amenable number.

83803816 is a deficient number, since it is larger than the sum of its proper divisors (77575724).

83803816 is a wasteful number, since it uses less digits than its factorization.

83803816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283164 (or 283160 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 83803816 is about 9154.4424188478. The cubic root of 83803816 is about 437.6106991715.

The spelling of 83803816 in words is "eighty-three million, eight hundred three thousand, eight hundred sixteen".