28655206 has 8 divisors (see below), whose sum is σ = 43036560. Its totient is φ = 14309688.

The previous prime is 28655203. The next prime is 28655227. The reversal of 28655206 is 60255682.

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

It is a super-2 number, since 2×28655206² = 1642241661804872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28655203) 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, 6861 + ... + 10216.

It is an arithmetic number, because the mean of its divisors is an integer number (5379570).

Almost surely, 2^28655206 is an apocalyptic number.

28655206 is a deficient number, since it is larger than the sum of its proper divisors (14381354).

28655206 is a wasteful number, since it uses less digits than its factorization.

28655206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17918.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 28655206 is about 5353.0557628330. The cubic root of 28655206 is about 306.0092198227.

The spelling of 28655206 in words is "twenty-eight million, six hundred fifty-five thousand, two hundred six".