28743016 has 16 divisors (see below), whose sum is σ = 53951040. Its totient is φ = 14356080.

The previous prime is 28742977. The next prime is 28743037. The reversal of 28743016 is 61034782.

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, 11425 + ... + 13711.

It is an arithmetic number, because the mean of its divisors is an integer number (3371940).

Almost surely, 2^28743016 is an apocalyptic number.

It is an amenable number.

28743016 is a deficient number, since it is larger than the sum of its proper divisors (25208024).

28743016 is a wasteful number, since it uses less digits than its factorization.

28743016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3864 (or 3860 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 28743016 is about 5361.2513464675. The cubic root of 28743016 is about 306.3214756952.

Adding to 28743016 its reverse (61034782), we get a palindrome (89777798).

It can be divided in two parts, 28 and 743016, that added together give a square (743044 = 862²).

The spelling of 28743016 in words is "twenty-eight million, seven hundred forty-three thousand, sixteen".