28097105 has 8 divisors (see below), whose sum is σ = 35491200. Its totient is φ = 21294576.

The previous prime is 28097101. The next prime is 28097123. The reversal of 28097105 is 50179082.

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

It is a cyclic number.

It is not a de Polignac number, because 28097105 - 2² = 28097101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28097101) 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, 147785 + ... + 147974.

It is an arithmetic number, because the mean of its divisors is an integer number (4436400).

Almost surely, 2^28097105 is an apocalyptic number.

It is an amenable number.

28097105 is a deficient number, since it is larger than the sum of its proper divisors (7394095).

28097105 is a wasteful number, since it uses less digits than its factorization.

28097105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295783.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 28097105 is about 5300.6702406394. The cubic root of 28097105 is about 304.0095254691.

The spelling of 28097105 in words is "twenty-eight million, ninety-seven thousand, one hundred five".