28056063 has 8 divisors (see below), whose sum is σ = 42752128. Its totient is φ = 16032024.

The previous prime is 28056047. The next prime is 28056071. The reversal of 28056063 is 36065082.

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

It is not a de Polignac number, because 28056063 - 2⁴ = 28056047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28056063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28056073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667981 + ... + 668022.

It is an arithmetic number, because the mean of its divisors is an integer number (5344016).

Almost surely, 2^28056063 is an apocalyptic number.

28056063 is a deficient number, since it is larger than the sum of its proper divisors (14696065).

28056063 is a wasteful number, since it uses less digits than its factorization.

28056063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336013.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 28056063 is about 5296.7974286355. The cubic root of 28056063 is about 303.8614290835.

The spelling of 28056063 in words is "twenty-eight million, fifty-six thousand, sixty-three".