28894858 has 16 divisors (see below), whose sum is σ = 46487520. Its totient is φ = 13427856.

The previous prime is 28894843. The next prime is 28894871. The reversal of 28894858 is 85849882.

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, 5160 + ... + 9187.

It is an arithmetic number, because the mean of its divisors is an integer number (2905470).

Almost surely, 2^28894858 is an apocalyptic number.

28894858 is a deficient number, since it is larger than the sum of its proper divisors (17592662).

28894858 is a wasteful number, since it uses less digits than its factorization.

28894858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14421.

The product of its digits is 1474560, while the sum is 52.

The square root of 28894858 is about 5375.3937530194. The cubic root of 28894858 is about 306.8599346210.

The spelling of 28894858 in words is "twenty-eight million, eight hundred ninety-four thousand, eight hundred fifty-eight".