99707028 has 12 divisors (see below), whose sum is σ = 232649760. Its totient is φ = 33235672.

The previous prime is 99707011. The next prime is 99707029. The reversal of 99707028 is 82070799.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99707029) by changing a digit.

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, 4154448 + ... + 4154471.

It is an arithmetic number, because the mean of its divisors is an integer number (19387480).

Almost surely, 2^99707028 is an apocalyptic number.

It is an amenable number.

99707028 is an abundant number, since it is smaller than the sum of its proper divisors (132942732).

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

99707028 is a wasteful number, since it uses less digits than its factorization.

99707028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8308926 (or 8308924 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 99707028 is about 9985.3406551805. The cubic root of 99707028 is about 463.7051547852.

The spelling of 99707028 in words is "ninety-nine million, seven hundred seven thousand, twenty-eight".