28854427 has 8 divisors (see below), whose sum is σ = 33175296. Its totient is φ = 24583272.

The previous prime is 28854401. The next prime is 28854473. The reversal of 28854427 is 72445882.

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

It is a de Polignac number, because none of the positive numbers 2^k-28854427 is a prime.

It is a super-3 number, since 3×28854427³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28854427.

It is not an unprimeable number, because it can be changed into a prime (28854227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11173 + ... + 13510.

It is an arithmetic number, because the mean of its divisors is an integer number (4146912).

Almost surely, 2^28854427 is an apocalyptic number.

28854427 is a deficient number, since it is larger than the sum of its proper divisors (4320869).

28854427 is a wasteful number, since it uses less digits than its factorization.

28854427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24857.

The product of its digits is 143360, while the sum is 40.

The square root of 28854427 is about 5371.6316887888. The cubic root of 28854427 is about 306.7167436864.

The spelling of 28854427 in words is "twenty-eight million, eight hundred fifty-four thousand, four hundred twenty-seven".