83131828 has 12 divisors (see below), whose sum is σ = 156671620. Its totient is φ = 38368512.

The previous prime is 83131823. The next prime is 83131843. The reversal of 83131828 is 82813138.

It can be written as a sum of positive squares in 2 ways, for example, as 39413284 + 43718544 = 6278^2 + 6612^2 .

It is a junction number, because it is equal to n+sod(n) for n = 83131793 and 83131802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83131823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 799293 + ... + 799396.

Almost surely, 2^83131828 is an apocalyptic number.

It is an amenable number.

83131828 is a deficient number, since it is larger than the sum of its proper divisors (73539792).

83131828 is a wasteful number, since it uses less digits than its factorization.

83131828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598706 (or 1598704 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 83131828 is about 9117.6657100378. The cubic root of 83131828 is about 436.4378859712.

The spelling of 83131828 in words is "eighty-three million, one hundred thirty-one thousand, eight hundred twenty-eight".