99175428 has 60 divisors (see below), whose sum is σ = 282843792. Its totient is φ = 30052080.

The previous prime is 99175423. The next prime is 99175451. The reversal of 99175428 is 82457199.

99175428 is a `hidden beast` number, since 99 + 17 + 542 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (99175423) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 10350 + ... + 17477.

Almost surely, 2^99175428 is an apocalyptic number.

It is an amenable number.

99175428 is an abundant number, since it is smaller than the sum of its proper divisors (183668364).

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

99175428 is a wasteful number, since it uses less digits than its factorization.

99175428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27854 (or 27843 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 99175428 is about 9958.6860579094. The cubic root of 99175428 is about 462.8795859194.

The spelling of 99175428 in words is "ninety-nine million, one hundred seventy-five thousand, four hundred twenty-eight".