99855422 has 8 divisors (see below), whose sum is σ = 149853000. Its totient is φ = 49904424.

The previous prime is 99855421. The next prime is 99855449. The reversal of 99855422 is 22455899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×99855422² = 19942210605596168, which contains 22 as substring.

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 (99855421) 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 3 ways as a sum of consecutive naturals, for example, 5672 + ... + 15227.

It is an arithmetic number, because the mean of its divisors is an integer number (18731625).

Almost surely, 2^99855422 is an apocalyptic number.

99855422 is a deficient number, since it is larger than the sum of its proper divisors (49997578).

99855422 is a wasteful number, since it uses less digits than its factorization.

99855422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23290.

The product of its digits is 259200, while the sum is 44.

The square root of 99855422 is about 9992.7684852597. The cubic root of 99855422 is about 463.9350849287.

The spelling of 99855422 in words is "ninety-nine million, eight hundred fifty-five thousand, four hundred twenty-two".