99543222 has 32 divisors (see below), whose sum is σ = 225387360. Its totient is φ = 32554080.

The previous prime is 99543221. The next prime is 99543233. The reversal of 99543222 is 22234599.

99543222 is a `hidden beast` number, since 99 + 543 + 2 + 22 = 666.

It is a super-2 number, since 2×99543222² = 19817706092282568, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99543221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14529 + ... + 20252.

It is an arithmetic number, because the mean of its divisors is an integer number (7043355).

Almost surely, 2^99543222 is an apocalyptic number.

99543222 is an abundant number, since it is smaller than the sum of its proper divisors (125844138).

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

99543222 is a wasteful number, since it uses less digits than its factorization.

99543222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34845 (or 34839 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 99543222 is about 9977.1349594961. The cubic root of 99543222 is about 463.4510793458.

The spelling of 99543222 in words is "ninety-nine million, five hundred forty-three thousand, two hundred twenty-two".