28588655 has 8 divisors (see below), whose sum is σ = 35798112. Its totient is φ = 21876448.

The previous prime is 28588639. The next prime is 28588709. The reversal of 28588655 is 55688582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28588655 - 2⁴ = 28588639 is a prime.

It is a super-3 number, since 3×28588655³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124184 + ... + 124413.

It is an arithmetic number, because the mean of its divisors is an integer number (4474764).

Almost surely, 2^28588655 is an apocalyptic number.

28588655 is a deficient number, since it is larger than the sum of its proper divisors (7209457).

28588655 is a wasteful number, since it uses less digits than its factorization.

28588655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248625.

The product of its digits is 768000, while the sum is 47.

The square root of 28588655 is about 5346.8359802784. The cubic root of 28588655 is about 305.7721365988.

The spelling of 28588655 in words is "twenty-eight million, five hundred eighty-eight thousand, six hundred fifty-five".