28283946 has 8 divisors (see below), whose sum is σ = 56567904. Its totient is φ = 9427980.

The previous prime is 28283921. The next prime is 28283953. The reversal of 28283946 is 64938282.

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

28283946 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 28283898 and 28283907.

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 3 ways as a sum of consecutive naturals, for example, 2356990 + ... + 2357001.

It is an arithmetic number, because the mean of its divisors is an integer number (7070988).

Almost surely, 2^28283946 is an apocalyptic number.

28283946 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28283946 is a wasteful number, since it uses less digits than its factorization.

28283946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4713996.

The product of its digits is 165888, while the sum is 42.

The square root of 28283946 is about 5318.2653186918. The cubic root of 28283946 is about 304.6819079105.

The spelling of 28283946 in words is "twenty-eight million, two hundred eighty-three thousand, nine hundred forty-six".