99103820 has 24 divisors (see below), whose sum is σ = 212959824. Its totient is φ = 38719296.

The previous prime is 99103813. The next prime is 99103831. The reversal of 99103820 is 2830199.

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, 56759 + ... + 58478.

It is an arithmetic number, because the mean of its divisors is an integer number (8873326).

Almost surely, 2^99103820 is an apocalyptic number.

It is an amenable number.

99103820 is an abundant number, since it is smaller than the sum of its proper divisors (113856004).

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

99103820 is a wasteful number, since it uses less digits than its factorization.

99103820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115289 (or 115287 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 99103820 is about 9955.0901552924. The cubic root of 99103820 is about 462.7681542112.

The spelling of 99103820 in words is "ninety-nine million, one hundred three thousand, eight hundred twenty".