99722980 has 48 divisors (see below), whose sum is σ = 243411840. Its totient is φ = 33608448.

The previous prime is 99722971. The next prime is 99722981. The reversal of 99722980 is 8922799.

It is a self number, because there is not a number n which added to its sum of digits gives 99722980.

It is not an unprimeable number, because it can be changed into a prime (99722981) 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, 2224 + ... + 14296.

It is an arithmetic number, because the mean of its divisors is an integer number (5071080).

Almost surely, 2^99722980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99722980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121705920).

99722980 is an abundant number, since it is smaller than the sum of its proper divisors (143688860).

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

99722980 is a wasteful number, since it uses less digits than its factorization.

99722980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12148 (or 12146 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 99722980 is about 9986.1393941803. The cubic root of 99722980 is about 463.7298826649.

The spelling of 99722980 in words is "ninety-nine million, seven hundred twenty-two thousand, nine hundred eighty".