83828788 has 12 divisors (see below), whose sum is σ = 148153572. Its totient is φ = 41499200.

The previous prime is 83828783. The next prime is 83828809. The reversal of 83828788 is 88782838.

It can be written as a sum of positive squares in 2 ways, for example, as 79067664 + 4761124 = 8892^2 + 2182^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83828783) 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, 103345 + ... + 104152.

It is an arithmetic number, because the mean of its divisors is an integer number (12346131).

Almost surely, 2^83828788 is an apocalyptic number.

It is an amenable number.

83828788 is a deficient number, since it is larger than the sum of its proper divisors (64324784).

83828788 is a wasteful number, since it uses less digits than its factorization.

83828788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207602 (or 207600 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 52.

The square root of 83828788 is about 9155.8062452195. The cubic root of 83828788 is about 437.6541615086.

The spelling of 83828788 in words is "eighty-three million, eight hundred twenty-eight thousand, seven hundred eighty-eight".