99543822 has 32 divisors (see below), whose sum is σ = 230652672. Its totient is φ = 28050624.

The previous prime is 99543799. The next prime is 99543827. The reversal of 99543822 is 22834599.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99543827) 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, 13168 + ... + 19299.

It is an arithmetic number, because the mean of its divisors is an integer number (7207896).

Almost surely, 2^99543822 is an apocalyptic number.

99543822 is an abundant number, since it is smaller than the sum of its proper divisors (131108850).

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

99543822 is a wasteful number, since it uses less digits than its factorization.

99543822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32552.

The product of its digits is 155520, while the sum is 42.

The square root of 99543822 is about 9977.1650282032. The cubic root of 99543822 is about 463.4520104994.

The spelling of 99543822 in words is "ninety-nine million, five hundred forty-three thousand, eight hundred twenty-two".