28543016 has 32 divisors (see below), whose sum is σ = 57072000. Its totient is φ = 13343616.

The previous prime is 28543001. The next prime is 28543019. The reversal of 28543016 is 61034582.

It is a self number, because there is not a number n which added to its sum of digits gives 28543016.

It is not an unprimeable number, because it can be changed into a prime (28543019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10820 + ... + 13196.

It is an arithmetic number, because the mean of its divisors is an integer number (1783500).

Almost surely, 2^28543016 is an apocalyptic number.

It is an amenable number.

28543016 is a deficient number, since it is larger than the sum of its proper divisors (28528984).

28543016 is a wasteful number, since it uses less digits than its factorization.

28543016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481 (or 2477 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 28543016 is about 5342.5664244818. The cubic root of 28543016 is about 305.6093381374.

Adding to 28543016 its reverse (61034582), we get a palindrome (89577598).

The spelling of 28543016 in words is "twenty-eight million, five hundred forty-three thousand, sixteen".