99504820 has 12 divisors (see below), whose sum is σ = 208960164. Its totient is φ = 39801920.

The previous prime is 99504787. The next prime is 99504841. The reversal of 99504820 is 2840599.

It can be written as a sum of positive squares in 2 ways, for example, as 53319204 + 46185616 = 7302^2 + 6796^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 99504820.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2487601 + ... + 2487640.

It is an arithmetic number, because the mean of its divisors is an integer number (17413347).

Almost surely, 2^99504820 is an apocalyptic number.

It is an amenable number.

99504820 is an abundant number, since it is smaller than the sum of its proper divisors (109455344).

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

99504820 is a wasteful number, since it uses less digits than its factorization.

99504820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4975250 (or 4975248 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 99504820 is about 9975.2102734729. The cubic root of 99504820 is about 463.3914746262.

The spelling of 99504820 in words is "ninety-nine million, five hundred four thousand, eight hundred twenty".