28208295 has 48 divisors (see below), whose sum is σ = 51347712. Its totient is φ = 14307840.

The previous prime is 28208267. The next prime is 28208317. The reversal of 28208295 is 59280282.

It is not a de Polignac number, because 28208295 - 2⁶ = 28208231 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101697 + ... + 101973.

It is an arithmetic number, because the mean of its divisors is an integer number (1069744).

Almost surely, 2^28208295 is an apocalyptic number.

28208295 is a deficient number, since it is larger than the sum of its proper divisors (23139417).

28208295 is a wasteful number, since it uses less digits than its factorization.

28208295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 28208295 is about 5311.1481809492. The cubic root of 28208295 is about 304.4100213811.

The spelling of 28208295 in words is "twenty-eight million, two hundred eight thousand, two hundred ninety-five".