103105828 has 24 divisors (see below), whose sum is σ = 211787072. Its totient is φ = 42993504.

The previous prime is 103105819. The next prime is 103105843. The reversal of 103105828 is 828501301.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 103105796 and 103105805.

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, 48726 + ... + 50797.

Almost surely, 2^103105828 is an apocalyptic number.

It is an amenable number.

103105828 is an abundant number, since it is smaller than the sum of its proper divisors (108681244).

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

103105828 is a wasteful number, since it uses less digits than its factorization.

103105828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99571 (or 99569 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 103105828 is about 10154.1039978917. The cubic root of 103105828 is about 468.9153015111.

The spelling of 103105828 in words is "one hundred three million, one hundred five thousand, eight hundred twenty-eight".