99820092 has 48 divisors (see below), whose sum is σ = 243919872. Its totient is φ = 31711680.

The previous prime is 99820087. The next prime is 99820103. The reversal of 99820092 is 29002899.

It is a self number, because there is not a number n which added to its sum of digits gives 99820092.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109117 + ... + 110027.

It is an arithmetic number, because the mean of its divisors is an integer number (5081664).

Almost surely, 2^99820092 is an apocalyptic number.

99820092 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99820092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121959936).

99820092 is an abundant number, since it is smaller than the sum of its proper divisors (144099780).

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

99820092 is a wasteful number, since it uses less digits than its factorization.

99820092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338 (or 1336 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 99820092 is about 9991.0005504954. Note that the first 3 decimals coincide. The cubic root of 99820092 is about 463.8803632798.

The spelling of 99820092 in words is "ninety-nine million, eight hundred twenty thousand, ninety-two".