28608475 has 12 divisors (see below), whose sum is σ = 40542544. Its totient is φ = 19617120.

The previous prime is 28608473. The next prime is 28608493. The reversal of 28608475 is 57480682.

It is not a de Polignac number, because 28608475 - 2¹ = 28608473 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28608473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81564 + ... + 81913.

Almost surely, 2^28608475 is an apocalyptic number.

28608475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28608475 is a deficient number, since it is larger than the sum of its proper divisors (11934069).

28608475 is a wasteful number, since it uses less digits than its factorization.

28608475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163494 (or 163489 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 28608475 is about 5348.6890917308. The cubic root of 28608475 is about 305.8427823819.

The spelling of 28608475 in words is "twenty-eight million, six hundred eight thousand, four hundred seventy-five".