28856842 has 8 divisors (see below), whose sum is σ = 49468896. Its totient is φ = 12367212.

The previous prime is 28856831. The next prime is 28856873. The reversal of 28856842 is 24865882.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030588 + ... + 1030615.

It is an arithmetic number, because the mean of its divisors is an integer number (6183612).

Almost surely, 2^28856842 is an apocalyptic number.

28856842 is a deficient number, since it is larger than the sum of its proper divisors (20612054).

28856842 is a wasteful number, since it uses less digits than its factorization.

28856842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061212.

The product of its digits is 245760, while the sum is 43.

The square root of 28856842 is about 5371.8564761170. The cubic root of 28856842 is about 306.7253004354.

The spelling of 28856842 in words is "twenty-eight million, eight hundred fifty-six thousand, eight hundred forty-two".