83428828 has 24 divisors (see below), whose sum is σ = 168515424. Its totient is φ = 35400000.

The previous prime is 83428811. The next prime is 83428841. The reversal of 83428828 is 82882438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11923 + ... + 17578.

It is an arithmetic number, because the mean of its divisors is an integer number (7021476).

Almost surely, 2^83428828 is an apocalyptic number.

It is an amenable number.

83428828 is an abundant number, since it is smaller than the sum of its proper divisors (85086596).

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

83428828 is a wasteful number, since it uses less digits than its factorization.

83428828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29613 (or 29611 counting only the distinct ones).

The product of its digits is 196608, while the sum is 43.

The square root of 83428828 is about 9133.9382524736. The cubic root of 83428828 is about 436.9570132282.

The spelling of 83428828 in words is "eighty-three million, four hundred twenty-eight thousand, eight hundred twenty-eight".