28981016 has 16 divisors (see below), whose sum is σ = 54429840. Its totient is φ = 14466400.

The previous prime is 28980949. The next prime is 28981021. The reversal of 28981016 is 61018982.

It is a congruent number.

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, 2741 + ... + 8091.

It is an arithmetic number, because the mean of its divisors is an integer number (3401865).

Almost surely, 2^28981016 is an apocalyptic number.

It is an amenable number.

28981016 is a deficient number, since it is larger than the sum of its proper divisors (25448824).

28981016 is a wasteful number, since it uses less digits than its factorization.

28981016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6034 (or 6030 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 28981016 is about 5383.4018984282. The cubic root of 28981016 is about 307.1646278627.

Adding to 28981016 its reverse (61018982), we get a palindrome (89999998).

The spelling of 28981016 in words is "twenty-eight million, nine hundred eighty-one thousand, sixteen".