28379858 has 16 divisors (see below), whose sum is σ = 46400256. Its totient is φ = 12939600.

The previous prime is 28379843. The next prime is 28379867. The reversal of 28379858 is 85897382.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4418 + ... + 8733.

It is an arithmetic number, because the mean of its divisors is an integer number (2900016).

Almost surely, 2^28379858 is an apocalyptic number.

28379858 is a deficient number, since it is larger than the sum of its proper divisors (18020398).

28379858 is a wasteful number, since it uses less digits than its factorization.

28379858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13249.

The product of its digits is 967680, while the sum is 50.

The square root of 28379858 is about 5327.2749131240. The cubic root of 28379858 is about 305.0259155620.

The spelling of 28379858 in words is "twenty-eight million, three hundred seventy-nine thousand, eight hundred fifty-eight".