28075099 has 8 divisors (see below), whose sum is σ = 30618560. Its totient is φ = 25586496.

The previous prime is 28075097. The next prime is 28075129. The reversal of 28075099 is 99057082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28075099 - 2¹ = 28075097 is a prime.

It is a super-2 number, since 2×28075099² = 1576422367719602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28075093) 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 7 ways as a sum of consecutive naturals, for example, 12642 + ... + 14695.

It is an arithmetic number, because the mean of its divisors is an integer number (3827320).

Almost surely, 2^28075099 is an apocalyptic number.

28075099 is a deficient number, since it is larger than the sum of its proper divisors (2543461).

28075099 is a wasteful number, since it uses less digits than its factorization.

28075099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27429.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 28075099 is about 5298.5940588047. The cubic root of 28075099 is about 303.9301367331.

The spelling of 28075099 in words is "twenty-eight million, seventy-five thousand, ninety-nine".