28600345 has 8 divisors (see below), whose sum is σ = 34368264. Its totient is φ = 22848384.

The previous prime is 28600331. The next prime is 28600373. The reversal of 28600345 is 54300682.

It can be written as a sum of positive squares in 4 ways, for example, as 8503056 + 20097289 = 2916^2 + 4483^2 .

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 28600345 - 2¹³ = 28592153 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 7 ways as a sum of consecutive naturals, for example, 397 + ... + 7573.

It is an arithmetic number, because the mean of its divisors is an integer number (4296033).

Almost surely, 2^28600345 is an apocalyptic number.

It is an amenable number.

28600345 is a deficient number, since it is larger than the sum of its proper divisors (5767919).

28600345 is an equidigital number, since it uses as much as digits as its factorization.

28600345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7979.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 28600345 is about 5347.9290384223. The cubic root of 28600345 is about 305.8138080145.

The spelling of 28600345 in words is "twenty-eight million, six hundred thousand, three hundred forty-five".