28416117 has 12 divisors (see below), whose sum is σ = 38449760. Its totient is φ = 18667320.

The previous prime is 28416049. The next prime is 28416121. The reversal of 28416117 is 71161482.

It is not a de Polignac number, because 28416117 - 2¹¹ = 28414069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28416137) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 14184 + ... + 16062.

Almost surely, 2^28416117 is an apocalyptic number.

It is an amenable number.

28416117 is a deficient number, since it is larger than the sum of its proper divisors (10033643).

28416117 is an equidigital number, since it uses as much as digits as its factorization.

28416117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024 (or 1953 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 28416117 is about 5330.6769738937. The cubic root of 28416117 is about 305.1557638490.

Adding to 28416117 its reverse (71161482), we get a palindrome (99577599).

The spelling of 28416117 in words is "twenty-eight million, four hundred sixteen thousand, one hundred seventeen".