28667608 has 16 divisors (see below), whose sum is σ = 53809560. Its totient is φ = 14318400.

The previous prime is 28667581. The next prime is 28667609. The reversal of 28667608 is 80676682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28667609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11428 + ... + 13708.

Almost surely, 2^28667608 is an apocalyptic number.

It is an amenable number.

28667608 is a deficient number, since it is larger than the sum of its proper divisors (25141952).

28667608 is a wasteful number, since it uses less digits than its factorization.

28667608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3858 (or 3854 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 28667608 is about 5354.2140412949. The cubic root of 28667608 is about 306.0533604810.

The spelling of 28667608 in words is "twenty-eight million, six hundred sixty-seven thousand, six hundred eight".