28467305 has 4 divisors (see below), whose sum is σ = 34160772. Its totient is φ = 22773840.

The previous prime is 28467293. The next prime is 28467311. The reversal of 28467305 is 50376482.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4545424 + 23921881 = 2132^2 + 4891^2 .

It is not a de Polignac number, because 28467305 - 2¹⁰ = 28466281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2846726 + ... + 2846735.

It is an arithmetic number, because the mean of its divisors is an integer number (8540193).

Almost surely, 2^28467305 is an apocalyptic number.

It is an amenable number.

28467305 is a deficient number, since it is larger than the sum of its proper divisors (5693467).

28467305 is an equidigital number, since it uses as much as digits as its factorization.

28467305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5693466.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 28467305 is about 5335.4760799764. The cubic root of 28467305 is about 305.3388869604.

The spelling of 28467305 in words is "twenty-eight million, four hundred sixty-seven thousand, three hundred five".