28355043 has 8 divisors (see below), whose sum is σ = 38181456. Its totient is φ = 18716000.

The previous prime is 28355039. The next prime is 28355051. The reversal of 28355043 is 34055382.

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

It is a cyclic number.

It is not a de Polignac number, because 28355043 - 2² = 28355039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28355043.

It is not an unprimeable number, because it can be changed into a prime (28355023) by changing a digit.

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, 46488 + ... + 47093.

It is an arithmetic number, because the mean of its divisors is an integer number (4772682).

Almost surely, 2^28355043 is an apocalyptic number.

28355043 is a deficient number, since it is larger than the sum of its proper divisors (9826413).

28355043 is a wasteful number, since it uses less digits than its factorization.

28355043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93685.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 28355043 is about 5324.9453518323. The cubic root of 28355043 is about 304.9369859966.

The spelling of 28355043 in words is "twenty-eight million, three hundred fifty-five thousand, forty-three".