99801099 has 16 divisors (see below), whose sum is σ = 151851040. Its totient is φ = 64735200.

The previous prime is 99801089. The next prime is 99801103. The reversal of 99801099 is 99010899.

It is not a de Polignac number, because 99801099 - 2⁴ = 99801083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99801089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48952 + ... + 50949.

It is an arithmetic number, because the mean of its divisors is an integer number (9490690).

Almost surely, 2^99801099 is an apocalyptic number.

99801099 is a deficient number, since it is larger than the sum of its proper divisors (52049941).

99801099 is a wasteful number, since it uses less digits than its factorization.

99801099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99947 (or 99941 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The square root of 99801099 is about 9990.0499998749. The cubic root of 99801099 is about 463.8509402167.

The spelling of 99801099 in words is "ninety-nine million, eight hundred one thousand, ninety-nine".