28563245 has 8 divisors (see below), whose sum is σ = 35381760. Its totient is φ = 22113360.

The previous prime is 28563211. The next prime is 28563253. The reversal of 28563245 is 54236582.

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

It is not a de Polignac number, because 28563245 - 2¹⁶ = 28497709 is a prime.

It is a congruent number.

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, 91985 + ... + 92294.

It is an arithmetic number, because the mean of its divisors is an integer number (4422720).

Almost surely, 2^28563245 is an apocalyptic number.

It is an amenable number.

28563245 is a deficient number, since it is larger than the sum of its proper divisors (6818515).

28563245 is a wasteful number, since it uses less digits than its factorization.

28563245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184315.

The product of its digits is 57600, while the sum is 35.

The square root of 28563245 is about 5344.4592804137. The cubic root of 28563245 is about 305.6815182158.

The spelling of 28563245 in words is "twenty-eight million, five hundred sixty-three thousand, two hundred forty-five".