99921050 has 36 divisors (see below), whose sum is σ = 189949338. Its totient is φ = 39096000.

The previous prime is 99921047. The next prime is 99921067. The reversal of 99921050 is 5012999.

It can be written as a sum of positive squares in 9 ways, for example, as 44582329 + 55338721 = 6677^2 + 7439^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 99921050.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 551960 + ... + 552140.

Almost surely, 2^99921050 is an apocalyptic number.

99921050 is a deficient number, since it is larger than the sum of its proper divisors (90028288).

99921050 is a wasteful number, since it uses less digits than its factorization.

99921050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 35.

The square root of 99921050 is about 9996.0517205545. The cubic root of 99921050 is about 464.0367000549.

The spelling of 99921050 in words is "ninety-nine million, nine hundred twenty-one thousand, fifty".