28934216 has 16 divisors (see below), whose sum is σ = 54313200. Its totient is φ = 14450704.

The previous prime is 28934197. The next prime is 28934231. The reversal of 28934216 is 61243982.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8855 + ... + 11673.

It is an arithmetic number, because the mean of its divisors is an integer number (3394575).

Almost surely, 2^28934216 is an apocalyptic number.

It is an amenable number.

28934216 is a deficient number, since it is larger than the sum of its proper divisors (25378984).

28934216 is a wasteful number, since it uses less digits than its factorization.

28934216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4108 (or 4104 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 28934216 is about 5379.0534483308. The cubic root of 28934216 is about 306.9991971600. Note that the first 3 decimals are identical.

The spelling of 28934216 in words is "twenty-eight million, nine hundred thirty-four thousand, two hundred sixteen".