28476844 has 12 divisors (see below), whose sum is σ = 54364968. Its totient is φ = 12944000.

The previous prime is 28476841. The next prime is 28476859. The reversal of 28476844 is 44867482.

It is a self number, because there is not a number n which added to its sum of digits gives 28476844.

It is not an unprimeable number, because it can be changed into a prime (28476841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323557 + ... + 323644.

It is an arithmetic number, because the mean of its divisors is an integer number (4530414).

Almost surely, 2^28476844 is an apocalyptic number.

It is an amenable number.

28476844 is a deficient number, since it is larger than the sum of its proper divisors (25888124).

28476844 is a wasteful number, since it uses less digits than its factorization.

28476844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647216 (or 647214 counting only the distinct ones).

The product of its digits is 344064, while the sum is 43.

The square root of 28476844 is about 5336.3699272071. The cubic root of 28476844 is about 305.3729880971.

The spelling of 28476844 in words is "twenty-eight million, four hundred seventy-six thousand, eight hundred forty-four".