99789122 has 8 divisors (see below), whose sum is σ = 150172176. Its totient is φ = 49731732.

The previous prime is 99789113. The next prime is 99789139. The reversal of 99789122 is 22198799.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80648 + ... + 81875.

It is an arithmetic number, because the mean of its divisors is an integer number (18771522).

Almost surely, 2^99789122 is an apocalyptic number.

99789122 is a deficient number, since it is larger than the sum of its proper divisors (50383054).

99789122 is a wasteful number, since it uses less digits than its factorization.

99789122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162832.

The product of its digits is 163296, while the sum is 47.

The square root of 99789122 is about 9989.4505354399. The cubic root of 99789122 is about 463.8323840919.

The spelling of 99789122 in words is "ninety-nine million, seven hundred eighty-nine thousand, one hundred twenty-two".