83788688 has 20 divisors (see below), whose sum is σ = 162562140. Its totient is φ = 41837184.

The previous prime is 83788667. The next prime is 83788703. The reversal of 83788688 is 88688738.

It can be written as a sum of positive squares in 2 ways, for example, as 46676224 + 37112464 = 6832^2 + 6092^2 .

It is a super-2 number, since 2×83788688² = 14041088473522688, which contains 22 as substring.

It is an unprimeable number.

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, 10106 + ... + 16422.

It is an arithmetic number, because the mean of its divisors is an integer number (8128107).

Almost surely, 2^83788688 is an apocalyptic number.

It is an amenable number.

83788688 is a deficient number, since it is larger than the sum of its proper divisors (78773452).

83788688 is a wasteful number, since it uses less digits than its factorization.

83788688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7154 (or 7148 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 56.

The square root of 83788688 is about 9153.6161160494. The cubic root of 83788688 is about 437.5843655534.

The spelling of 83788688 in words is "eighty-three million, seven hundred eighty-eight thousand, six hundred eighty-eight".