99982228 has 24 divisors (see below), whose sum is σ = 177080904. Its totient is φ = 49392000.

The previous prime is 99982217. The next prime is 99982229. The reversal of 99982228 is 82228999.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29724304 + 70257924 = 5452^2 + 8382^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99982229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142278 + ... + 142978.

It is an arithmetic number, because the mean of its divisors is an integer number (7378371).

Almost surely, 2^99982228 is an apocalyptic number.

It is an amenable number.

99982228 is a deficient number, since it is larger than the sum of its proper divisors (77098676).

99982228 is a wasteful number, since it uses less digits than its factorization.

99982228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1081 counting only the distinct ones).

The product of its digits is 373248, while the sum is 49.

The square root of 99982228 is about 9999.1113605160. Note that the first 3 decimals coincide. The cubic root of 99982228 is about 464.1313849600.

The spelling of 99982228 in words is "ninety-nine million, nine hundred eighty-two thousand, two hundred twenty-eight".