28656327 has 24 divisors (see below), whose sum is σ = 44775552. Its totient is φ = 16254000.

The previous prime is 28656319. The next prime is 28656337. The reversal of 28656327 is 72365682.

It is not a de Polignac number, because 28656327 - 2³ = 28656319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28656317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21552 + ... + 22842.

It is an arithmetic number, because the mean of its divisors is an integer number (1865648).

Almost surely, 2^28656327 is an apocalyptic number.

28656327 is a deficient number, since it is larger than the sum of its proper divisors (16119225).

28656327 is a wasteful number, since it uses less digits than its factorization.

28656327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459 (or 1452 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 28656327 is about 5353.1604683589. The cubic root of 28656327 is about 306.0132101606.

The spelling of 28656327 in words is "twenty-eight million, six hundred fifty-six thousand, three hundred twenty-seven".