28365265 has 16 divisors (see below), whose sum is σ = 36191232. Its totient is φ = 21268224.

The previous prime is 28365263. The next prime is 28365283. The reversal of 28365265 is 56256382.

It is a happy number.

It is not a de Polignac number, because 28365265 - 2¹ = 28365263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28365263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25552 + ... + 26638.

It is an arithmetic number, because the mean of its divisors is an integer number (2261952).

Almost surely, 2^28365265 is an apocalyptic number.

It is an amenable number.

28365265 is a deficient number, since it is larger than the sum of its proper divisors (7825967).

28365265 is a wasteful number, since it uses less digits than its factorization.

28365265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416.

The product of its digits is 86400, while the sum is 37.

The square root of 28365265 is about 5325.9050874006. The cubic root of 28365265 is about 304.9736248804.

The spelling of 28365265 in words is "twenty-eight million, three hundred sixty-five thousand, two hundred sixty-five".