28105365 has 16 divisors (see below), whose sum is σ = 45586368. Its totient is φ = 14783616.

The previous prime is 28105349. The next prime is 28105373. The reversal of 28105365 is 56350182.

It is not a de Polignac number, because 28105365 - 2⁴ = 28105349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11739 + ... + 13928.

It is an arithmetic number, because the mean of its divisors is an integer number (2849148).

Almost surely, 2^28105365 is an apocalyptic number.

It is an amenable number.

28105365 is a deficient number, since it is larger than the sum of its proper divisors (17481003).

28105365 is a wasteful number, since it uses less digits than its factorization.

28105365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25748.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 28105365 is about 5301.4493301361. The cubic root of 28105365 is about 304.0393135041.

The spelling of 28105365 in words is "twenty-eight million, one hundred five thousand, three hundred sixty-five".