99915928 has 16 divisors (see below), whose sum is σ = 214105680. Its totient is φ = 42821088.

The previous prime is 99915877. The next prime is 99915929. The reversal of 99915928 is 82951999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99915929) 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, 892051 + ... + 892162.

It is an arithmetic number, because the mean of its divisors is an integer number (13381605).

Almost surely, 2^99915928 is an apocalyptic number.

It is an amenable number.

99915928 is an abundant number, since it is smaller than the sum of its proper divisors (114189752).

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

99915928 is a wasteful number, since it uses less digits than its factorization.

99915928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784226 (or 1784222 counting only the distinct ones).

The product of its digits is 524880, while the sum is 52.

The square root of 99915928 is about 9995.7955161158. The cubic root of 99915928 is about 464.0287710063.

The spelling of 99915928 in words is "ninety-nine million, nine hundred fifteen thousand, nine hundred twenty-eight".