28655349 has 8 divisors (see below), whose sum is σ = 38564640. Its totient is φ = 18924816.

The previous prime is 28655327. The next prime is 28655357. The reversal of 28655349 is 94355682.

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

It is not a de Polignac number, because 28655349 - 2⁵ = 28655317 is a prime.

It is a super-2 number, since 2×28655349² = 1642258052623602, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28655349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28655359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44314 + ... + 44955.

It is an arithmetic number, because the mean of its divisors is an integer number (4820580).

Almost surely, 2^28655349 is an apocalyptic number.

It is an amenable number.

28655349 is a deficient number, since it is larger than the sum of its proper divisors (9909291).

28655349 is a wasteful number, since it uses less digits than its factorization.

28655349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89379.

The product of its digits is 259200, while the sum is 42.

The square root of 28655349 is about 5353.0691196733. The cubic root of 28655349 is about 306.0097288547.

The spelling of 28655349 in words is "twenty-eight million, six hundred fifty-five thousand, three hundred forty-nine".