28534097 has 4 divisors (see below), whose sum is σ = 28546560. Its totient is φ = 28521636.

The previous prime is 28534091. The next prime is 28534133. The reversal of 28534097 is 79043582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 28534097 - 2⁴ = 28534081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28534097.

It is not an unprimeable number, because it can be changed into a prime (28534091) 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, 1697 + ... + 7742.

It is an arithmetic number, because the mean of its divisors is an integer number (7136640).

Almost surely, 2^28534097 is an apocalyptic number.

It is an amenable number.

28534097 is a deficient number, since it is larger than the sum of its proper divisors (12463).

28534097 is an equidigital number, since it uses as much as digits as its factorization.

28534097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12462.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 28534097 is about 5341.7316480707. The cubic root of 28534097 is about 305.5775029867.

The spelling of 28534097 in words is "twenty-eight million, five hundred thirty-four thousand, ninety-seven".