28063045 has 4 divisors (see below), whose sum is σ = 33675660. Its totient is φ = 22450432.

The previous prime is 28063043. The next prime is 28063051. The reversal of 28063045 is 54036082.

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 16112196 + 11950849 = 4014^2 + 3457^2 .

It is a cyclic number.

It is not a de Polignac number, because 28063045 - 2¹ = 28063043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28063043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2806300 + ... + 2806309.

It is an arithmetic number, because the mean of its divisors is an integer number (8418915).

Almost surely, 2^28063045 is an apocalyptic number.

It is an amenable number.

28063045 is a deficient number, since it is larger than the sum of its proper divisors (5612615).

28063045 is an equidigital number, since it uses as much as digits as its factorization.

28063045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5612614.

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

The square root of 28063045 is about 5297.4564651349. The cubic root of 28063045 is about 303.8866331963.

The spelling of 28063045 in words is "twenty-eight million, sixty-three thousand, forty-five".