28854455 has 8 divisors (see below), whose sum is σ = 39571872. Its totient is φ = 19785888.

The previous prime is 28854401. The next prime is 28854473. The reversal of 28854455 is 55445882.

It is a happy number.

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 28854455 - 2²² = 24660151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 412172 + ... + 412241.

It is an arithmetic number, because the mean of its divisors is an integer number (4946484).

Almost surely, 2^28854455 is an apocalyptic number.

28854455 is a deficient number, since it is larger than the sum of its proper divisors (10717417).

28854455 is an equidigital number, since it uses as much as digits as its factorization.

28854455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824425.

The product of its digits is 256000, while the sum is 41.

The square root of 28854455 is about 5371.6342950726. The cubic root of 28854455 is about 306.7168428978.

The spelling of 28854455 in words is "twenty-eight million, eight hundred fifty-four thousand, four hundred fifty-five".