28794093 has 4 divisors (see below), whose sum is σ = 38392128. Its totient is φ = 19196060.

The previous prime is 28794089. The next prime is 28794097. The reversal of 28794093 is 39049782.

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.

It is an interprime number because it is at equal distance from previous prime (28794089) and next prime (28794097).

It is a cyclic number.

It is not a de Polignac number, because 28794093 - 2² = 28794089 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28794097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4799013 + ... + 4799018.

It is an arithmetic number, because the mean of its divisors is an integer number (9598032).

Almost surely, 2^28794093 is an apocalyptic number.

It is an amenable number.

28794093 is a deficient number, since it is larger than the sum of its proper divisors (9598035).

28794093 is an equidigital number, since it uses as much as digits as its factorization.

28794093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9598034.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 28794093 is about 5366.0127655458. The cubic root of 28794093 is about 306.5028150902.

The spelling of 28794093 in words is "twenty-eight million, seven hundred ninety-four thousand, ninety-three".