28793295 has 12 divisors (see below), whose sum is σ = 49908456. Its totient is φ = 15356400.

The previous prime is 28793293. The next prime is 28793311. The reversal of 28793295 is 59239782.

It is not a de Polignac number, because 28793295 - 2¹ = 28793293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 639851 = 28793295 / (2 + 8 + 7 + 9 + 3 + 2 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 28793295.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28793293) 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 11 ways as a sum of consecutive naturals, for example, 319881 + ... + 319970.

It is an arithmetic number, because the mean of its divisors is an integer number (4159038).

Almost surely, 2^28793295 is an apocalyptic number.

28793295 is a deficient number, since it is larger than the sum of its proper divisors (21115161).

28793295 is a wasteful number, since it uses less digits than its factorization.

28793295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639862 (or 639859 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 28793295 is about 5365.9384081445. The cubic root of 28793295 is about 306.4999835892.

The spelling of 28793295 in words is "twenty-eight million, seven hundred ninety-three thousand, two hundred ninety-five".