28567345 has 8 divisors (see below), whose sum is σ = 34620840. Its totient is φ = 22627200.

The previous prime is 28567321. The next prime is 28567381. The reversal of 28567345 is 54376582.

It can be written as a sum of positive squares in 4 ways, for example, as 18173169 + 10394176 = 4263^2 + 3224^2 .

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

It is not a de Polignac number, because 28567345 - 2⁹ = 28566833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28567298 and 28567307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27780 + ... + 28789.

It is an arithmetic number, because the mean of its divisors is an integer number (4327605).

Almost surely, 2^28567345 is an apocalyptic number.

It is an amenable number.

28567345 is a deficient number, since it is larger than the sum of its proper divisors (6053495).

28567345 is a wasteful number, since it uses less digits than its factorization.

28567345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56675.

The product of its digits is 201600, while the sum is 40.

The square root of 28567345 is about 5344.8428414688. The cubic root of 28567345 is about 305.6961434713.

It can be divided in two parts, 2856 and 7345, that added together give a palindrome (10201).

The spelling of 28567345 in words is "twenty-eight million, five hundred sixty-seven thousand, three hundred forty-five".