28650265 has 8 divisors (see below), whose sum is σ = 39291840. Its totient is φ = 19645872.

The previous prime is 28650217. The next prime is 28650277. The reversal of 28650265 is 56205682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28650265 - 2⁷ = 28650137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28650265.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 409255 + ... + 409324.

It is an arithmetic number, because the mean of its divisors is an integer number (4911480).

Almost surely, 2^28650265 is an apocalyptic number.

It is an amenable number.

28650265 is a deficient number, since it is larger than the sum of its proper divisors (10641575).

28650265 is an equidigital number, since it uses as much as digits as its factorization.

28650265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818591.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 28650265 is about 5352.5942308380. The cubic root of 28650265 is about 305.9916304829.

The spelling of 28650265 in words is "twenty-eight million, six hundred fifty thousand, two hundred sixty-five".