28365116 has 12 divisors (see below), whose sum is σ = 53457432. Its totient is φ = 13091568.

The previous prime is 28365109. The next prime is 28365121. The reversal of 28365116 is 61156382.

It is a happy number.

It is a congruent number.

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, 272690 + ... + 272793.

It is an arithmetic number, because the mean of its divisors is an integer number (4454786).

Almost surely, 2^28365116 is an apocalyptic number.

28365116 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28365116 is a deficient number, since it is larger than the sum of its proper divisors (25092316).

28365116 is a wasteful number, since it uses less digits than its factorization.

28365116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545500 (or 545498 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 28365116 is about 5325.8910991495. The cubic root of 28365116 is about 304.9730908805.

The spelling of 28365116 in words is "twenty-eight million, three hundred sixty-five thousand, one hundred sixteen".