99427072 has 36 divisors (see below), whose sum is σ = 201750976. Its totient is φ = 48890880.

The previous prime is 99427063. The next prime is 99427121. The reversal of 99427072 is 27072499.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12433 + ... + 18799.

Almost surely, 2^99427072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99427072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100875488).

99427072 is an abundant number, since it is smaller than the sum of its proper divisors (102323904).

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

99427072 is an equidigital number, since it uses as much as digits as its factorization.

99427072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6444 (or 6430 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 99427072 is about 9971.3124512273. The cubic root of 99427072 is about 463.2707530107.

The spelling of 99427072 in words is "ninety-nine million, four hundred twenty-seven thousand, seventy-two".