99387872 has 24 divisors (see below), whose sum is σ = 202419000. Its totient is φ = 47979904.
The previous prime is 99387863. The next prime is 99387887. The reversal of 99387872 is 27878399.
It is a congruent number.
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, 52622 + ... + 54477.
It is an arithmetic number, because the mean of its divisors is an integer number (8434125).
Almost surely, 299387872 is an apocalyptic number.
It is an amenable number.
99387872 is an abundant number, since it is smaller than the sum of its proper divisors (103031128).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
99387872 is a wasteful number, since it uses less digits than its factorization.
99387872 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 107138 (or 107130 counting only the distinct ones).
The product of its digits is 1524096, while the sum is 53.
The square root of 99387872 is about 9969.3466185102. The cubic root of 99387872 is about 463.2098621477.
The spelling of 99387872 in words is "ninety-nine million, three hundred eighty-seven thousand, eight hundred seventy-two".
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